Electronegativity differences in bonding using Pauling scale. Using differences in electronegativity to classify bonds as covalent, polar covalent, or ionic. Watch the next lesson: https://www.khanacademy.org/science/chemistry/chemical-bonds/types-chemical-bonds/v/metallic-nature-trends?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Missed the previous lesson? https://www.khanacademy.org/science/chemistry/chemical-bonds/types-chemical-bonds/v/electronegativity-trends?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Chemistry channel: https://www.youtube.com/channel/UCyEot66LrwWFEMONvrIBh3A?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 642521 Khan Academy Organic Chemistry
Ionic Bond, Covalent Bond, James Bond, so many bonds! What dictates which kind of bond will form? Electronegativity values, of course. Let's go through each type and what they're all about. Subscribe: http://bit.ly/ProfDaveSubscribe [email protected] http://patreon.com/ProfessorDaveExplains http://professordaveexplains.com http://facebook.com/ProfessorDaveExpl... http://twitter.com/DaveExplains General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths Biology Tutorials: http://bit.ly/ProfDaveBio American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Views: 238367 Professor Dave Explains
This organic chemistry video tutorial explains how to identify a bond as an ionic bond, polar covalent bond, or a nonpolar covalent bond. Ionic bonds usually consist of metals and nonmetals where as covalent bonds consists of nonmetals. In a nonpolar covalent bond, electrons are shared equally and the electronegativity difference between the two atoms is 0.4 or less. For polar covalent bonds, the electrons are shared unequally between the two atoms and the electronegativity difference is defined to be 0.5 or more. Subscribe: https://www.youtube.com/channel/UCEWpbFLzoYGPfuWUMFPSaoA?sub_confirmation=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor https://www.facebook.com/MathScienceTutoring/ New Organic Chemistry Playlist https://www.youtube.com/watch?v=6unef5Hz6SU&index=1&list=PL0o_zxa4K1BXP7TUO7656wg0uF1xYnwgm&t=0s
Views: 11572 The Organic Chemistry Tutor
This video is Awesome! Understand Bonding Like Never Before. Polar Covalent, Nonpolar Covalent & Ionic Bonds - This video shows how to determine the type of bond that will form based on electronegativity values. The difference in electronegativity values result in the bond being ionic, non polar covalent or polar covalent. Ionic bonds result from the transfer of electrons, polar covalent from the uneven sharing of electrons and non polar covalent bonds from the even sharing of electrons. Tune in for the video on Polar Molecules.
Views: 129116 sciencepost
*** PLEASE WATCH WITH ANNOTATIONS ON! SOME INACCURACIES IN GRAPHICS ARE NOTED AND CORRECTED IN ANNOTATIONS. THANKS! *** Molecules come in infinite varieties, so in order to help the complicated chemical world make a little more sense, we classify and categorize them. One of the most important of those classifications is whether a molecule is polar or non-polar, which describes a kind of symmetry - not just of the molecule, but of the charge. In this edition of Crash Course Chemistry, Hank comes out for Team Polar, and describes why these molecules are so interesting to him. You'll learn that molecules need to have both charge asymmetry and geometric asymmetry to be polar, and that charge asymmetry is caused by a difference in electronegativities. You'll also learn how to notate a dipole moment (or charge separation) of a molecule, the physical mechanism behind like dissolves like, and why water is so dang good at fostering life on Earth. -- Table of Contents Charge Assymetry & Geometric Asymmetry 01:33 Difference in Electronegatives 01:49 Hank is Team Polar 00:33 Dipole Moment 03:49 Charge Separation of a Molecule 04:12 Like Dissolves Like 04:41 Water is Awesome 05:10 -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 2297857 CrashCourse
This chemistry video tutorial provides a basic introduction into the types of chemical bonds such as polar covalent bonds, nonpolar covalent bonds and ionic bonds. It discusses the difference between ionic bonding and covalent bonding. Ionic bonds can be identified by looking for a metal combined with a nonmetal. Covalent bonds typically occur among 2 or more nonmetals. Covalent bonding involves a sharing of electrons and ionic bonding forms as a result of a transfer of electrons from the metal to the nonmetal producing ions with opposite charge which are attracted to each other. The electrostatic force of attraction produces the ionic bond that holds the cations and anions together. Polar covalent bonds have unequal sharing of electrons between the atoms where as nonpolar covalent bonding have a relatively equal sharing of electrons between the atoms attached to the bond. Polar covalent bonds typically have an electronegativity difference of 0.5 or more where as nonpolar covalent bonds have a value difference of 0.4 or less. This video contains plenty of examples and practice problems. New Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&t=25s&list=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/
Views: 11594 The Organic Chemistry Tutor
To see all my Chemistry videos, check out http://socratic.org/chemistry This video is an introduction to ionic bonding, which is one type of chemical bonding. Ionic bonds hold together metal and nonmetal atoms. In ionic bonding, electrons are transferred from a metal atom to a nonmetal atom, creating ions. These ions have opposite charge, so they stick together. Creative Commons Attribution-NonCommercial CC BY-NC
Views: 992821 Tyler DeWitt
Defines electronegativity and compares to electron affinity. Explains group and period trends in electronegativity using atomic radii. Watch the next lesson: https://www.khanacademy.org/science/biology/chemistry--of-life/chemical-bonds-and-reactions/v/electronegativity-and-chemical-bonds?utm_source=YT&utm_medium=Desc&utm_campaign=biology Missed the previous lesson? https://www.khanacademy.org/science/biology/chemistry--of-life/chemical-bonds-and-reactions/v/ionic-covalent-and-metallic-bonds?utm_source=YT&utm_medium=Desc&utm_campaign=biology Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or first-year college biology course. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy's Biology channel: https://www.youtube.com/channel/UC82qE46vcTn7lP4tK_RHhdg?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 691688 Khan Academy
✔ https://StudyForce.com ✔ https://Biology-Forums.com ✔ Ask questions here: https://Biology-Forums.com/index.php?board=33.0 Follow us: ▶ Facebook: https://facebook.com/StudyForcePS/ ▶ Instagram: https://instagram.com/studyforceonline/ ▶ Twitter: https://twitter.com/studyforceps Pure covalent bonds are those in which electrons are shared equally between the two atoms involved. This can only happen for pairs of identical atoms. In a polar covalent bond, the electrons shared by the atoms spend a greater amount of time, on the average, closer to the nucleus of one atom over the other. An ionic bond is a type of chemical bond that involves a metal and a nonmetal ion (or polyatomic ions such as ammonium) through electrostatic attraction. In short, it is a bond formed by the attraction between two oppositely charged ions. Q1. Classify the bond formed between each pair of atoms as covalent, polar covalent, or ionic. (a) Sr and F (b) N and Cl (c) N and O Q2. Classify the bond formed between each pair of atoms as pure covalent, polar covalent, or ionic. (a) I and I (b) Cs and Br (c) P and O (a) From Figure 9.7, find the electronegativities of Sr (1.0) and of F (4.0). The electronegativity difference is ΔEN = 4.0 − 1.0 = 3.0. Using Table 9.1, classify this bond as ionic. (b) From Figure 9.7, find the electronegativities of N (3.0) and of Cl (3.0). The electronegativity difference (ΔEN) is ΔEN = 3.0 − 3.0 = 0. Using Table 9.1, classify this bond as covalent. (c) From Figure 9.7, find the electronegativities of N (3.0) and of O (3.5). The electronegativity difference (ΔEN) is ΔEN = 3.5 − 3.0 = 0.5. Using Table 9.1, classify this bond as polar covalent.
Views: 162 Study Force
https://www.thechemistrysolution.com This chemistry tutorial covers bond polarity and electronegativity, and the general trend of electronegativity on the periodic table. This tutorial also includes examples determining the relative polarity of different bonds.
Views: 85185 TheChemistrySolution
There are four types of chemical bonds essential for life to exist: Ionic Bonds, Covalent Bonds, Hydrogen Bonds, and van der Waals interactions. We need all of these different kinds of bonds to play various roles in biochemical interactions. These bonds vary in their strengths. In Chemistry, we think of Ionic Bonds and Covalent bonds as having an overlapping range of strengths. But remember, in biochemistry, everything is happening in the context of water. This means Ionic bonds tend to dissociate in water. Thus, we will think of these bonds in the following order (strongest to weakest): Covalent, Ionic, Hydrogen, and van der Waals. Also note that in Chemistry, the weakest bonds are more commonly referred to as “dispersion forces.” Related Chemistry video: Ionic Bonds vs Covalent Bonds http://bit.ly/2cUG6C8 Our series on Biology is aimed at the first-year college level, including pre-med students. These videos should also be helpful for students in challenging high school biology courses. Perfect for preparing for the AP Biology exam or the Biology SAT. Also appropriate for advanced homeschoolers. You can also follow along if you are just curious, and would like to know more about this fascinating subject. ***** Our current biology textbook recommendation is Campbell Biology from Pearson. 10th edition Amazon Link: http://amzn.to/2mahQTi 11th edition Amazon Link: http://amzn.to/2m7xU6w Amazon Used Textbooks - Save up to 90% http://amzn.to/2pllk4B For lighter reading, we recommend: I Contain Multitudes: The Microbes Within Us and a Grander View of Life by Ed Yong http://amzn.to/2pLOddQ Lab Girl by Hope Jahren http://amzn.to/2oMolPg ***** This video was made possible by the generous donations of our Patrons on Patreon. We dedicate this video to our VIP Patron, Vishal Shah. We’re so thankful for your support! ***** Please Subscribe so you'll hear about our newest videos! http://bit.ly/1ixuu9W If you found this video helpful, please give it a "thumbs up" and share it with your friends! If you'd like to support more great educational videos from Socratica, please consider becoming our Patron on Patreon! https://www.patreon.com/socratica ***** Written and Produced by Kimberly Hatch Harrison About our instructor: Kimberly Hatch Harrison received degrees in Biology and English Literature from Caltech before working in pharmaceuticals research, developing drugs for autoimmune disorders. She then continued her studies in Molecular Biology (focusing on Immunology and Neurobiology) at Princeton University, where she began teaching as a graduate student. Her success in teaching convinced her to leave the glamorous world of biology research and turn to teaching full-time, accepting a position at an exclusive prep school, where she taught biology and chemistry for eight years. She is now the head writer and producer of Socratica Studios. ****** Creative Commons Picture Credits: Salt crystals https://en.wikipedia.org/wiki/File:Halit-Kristalle.jpg Author: W.J. Pilsak Hydrogen Bonding in water https://en.wikipedia.org/wiki/File:3D_model_hydrogen_bonds_in_water.svg Author: Qwerter Products in this video: Preparing for the Biology AP* Exam (School Edition) (Pearson Education Test Prep) - http://amzn.to/2qJVbxm Cracking the AP Biology Exam, 2017 Edition: Proven Techniques to Help You Score a 5 (College Test Preparation) - http://amzn.to/2qB3NsZ Cracking the SAT Biology E/M Subject Test, 15th Edition (College Test Preparation) - http://amzn.to/2qJIfHN
Views: 33558 Socratica
This chemistry video tutorial provides a basic introduction into bond polarity, electronegativity, and the dipole moment of a bond. It explains how to indicate the polarity of a bond and of a molecule using electronegativity and it discusses how to draw the dipole moment of a bond. New Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&t=25s&list=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/
Views: 55101 The Organic Chemistry Tutor
To see all my Chemistry videos, check out http://socratic.org/chemistry Here, we'll talk about electronegativity, and why some atoms steal electrons, while other atoms give them away. We will look at the 3D lattice structures that are formed during ionic bonding, and we'll have a quick introduction to writing chemical formulas and naming ionic compounds.
Views: 266260 Tyler DeWitt
A mini-lecture on identifying whether a bond is non-polar covalent, polar covalent, or ionic.
Views: 640 Professor Heath's Chemistry Channel
Atoms are a lot like us - we call their relationships "bonds," and there are many different types. Each kind of atomic relationship requires a different type of energy, but they all do best when they settle into the lowest stress situation possible. The nature of the bond between atoms is related to the distance between them and, like people, it also depends on how positive or negative they are. Unlike with human relationships, we can analyze exactly what makes chemical relationships work, and that's what this episode is all about. If you are paying attention, you will learn that chemical bonds form in order to minimize the energy difference between two atoms or ions; that those chemical bonds may be covalent if atoms share electrons, and that covalent bonds can share those electrons evenly or unevenly; that bonds can also be ionic if the electrons are transferred instead of shared: and how to calculate the energy transferred in an ionic bond using Coulomb's Law. -- Table of Contents Bonds Minimize Energy 01:38 Covalent Bonds 03:18 Ionic Bonds 05:37 Coulomb's Law 05:51 -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1661434 CrashCourse
To see all my Chemistry videos, check out http://socratic.org/chemistry We'll look at the details of ionic bonding, using sodium chloride as an example. Both atoms have unfilled valence shells, which are the outermost energy level. Electrons are transferred from the metal to the nonmetal, creating ions with an opposite charge. The atoms are then held together because of the attraction between the opposite charges.
Views: 446284 Tyler DeWitt
NEW & IMPROVED VIDEO LINK - I've improved this video, check it out (http://youtu.be/4SjSKjmO38c). Determining the Type of Bond Based On Electronegativity. Polar, Nonpolar or Ionic Bonds. This is meant to be an introduction to molecular polarity. Higher order polar covalent molecules are not discussed. Clear & Simple Chemistry Explanation.
Views: 290506 sciencepost
Are you students having trouble determining whether a compound is ionic or covalent? View this quick and easy strategy that students can utilize to learn the difference between the two. Of course, this is not taking into account differences in electronegativity. However, for the purposes of an on-level class, this strategy will suffice. Check out my Teaching Tips and Strategies Playlist: https://www.youtube.com/watch?v=2dqM6Vdf-oQ&list=PLZ5iwaxhtmvIQhdsD3MGVxRwoPpFTRjvn __________________________________________________________________________________________________________________________________ Subscribe to my newsletter: http://bit.ly/bwjnews Facebook @bondwithjames https://www.facebook.com/bondwithjames Instagram @bondwithjames https://www.instagram.com/bondwithjames Pinterest @bondwithjames https://www.pinterest.com/bondwithjames TeachersPayTeachers @bondwithjames https://www.teacherspayteachers.com/store/bond-with-james Business inquiries? [email protected] _________________________________________________________________________________________________________________________________ In this video, James of Bond with James, shares a quick teaching tip that chemistry teachers may utilize in their classrooms to interactively help students recognize the difference between covalent compounds and ionic compounds using the periodic table. Some teachers prefer to teach ionic compounds separately from covalent compounds, while others prefer to teach them together. However, memorizing the rules for chemical nomenclature is like learning a new language in a short period of time - which often causes frustration for students, especially if they still have trouble recognizing the difference between covalent compounds and ionic compounds. James has found that using this simple strategy helps students quickly recognize the difference between ionic and covalent compounds. The strategy is short, simple, and interactive. It does not require a bunch of materials or time to show it to chemistry students.
Views: 3699 Bond with James
Mr. Andersen shows you how to determine if a bond is nonpolar covalent, polar covalent, or ionc. Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
Views: 609880 Bozeman Science
This video provides a fast way for you to determine if a molecule is polar or nonpolar. It provides examples so you can quickly distinguish nonpolar molecules from those that are polar. General Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&list=PL0o_zxa4K1BV-uX6wXQgyqZXvRd0tUUV0&index=3 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/ Here is a list of molecules that are classified as polar or nonpolar: N2, O2, Cl2, F2, H2 He, Ne, Ar, Xe CH4, C2H6, CH2=CH2, CF4, SBr6, BH3, CO2, PCl5, H2O, NH3, HF, CH3OH, CH3NH2, CH3COOH OCS, CH3F, SO2
Views: 552725 The Organic Chemistry Tutor
Video by Daniela Rangel, Jocelyn Diez and destiny Lumbreras, for mr Jackson's 3rd period chem class
Views: 28346 Cshm chemistry 35
This crash course chemistry video tutorial explains the main concepts between ionic bonds found in ionic compounds and polar & nonpolar covalent bonding found in molecular compounds. This video contains plenty of notes, examples, and practice problems. Here is a list of topics: 1. Ionic Bonds - Transfer of Valence Electrons 2. Electrostatic Force of Attraction In Ionic Bonding 3. Ionic Compounds - Metals and Nonmetals 4. Molecular Compounds - 2 or More Nonmetals 5. Polar Covalent Bonding - Unequal Sharing of Electrons 6. Nonpolar Covalent Bonds - Equal Sharing of Electrons 7. Polarized Compounds - Dipole Moment and Charge Separation 8. Electronegativity and Charge Distribution 9. Metal Cations vs Nonmetal Anions
Views: 114820 The Organic Chemistry Tutor
Introduction to ionic, covalent, polar covalent and metallic bonds. Watch the next lesson: https://www.khanacademy.org/science/chemistry/chemical-bonds/types-chemical-bonds/v/electronegativity-trends?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Missed the previous lesson? https://www.khanacademy.org/science/chemistry/periodic-table/periodic-table-trends-bonding/v/metallic-nature-trends?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful. About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Chemistry channel: https://www.youtube.com/channel/UCyEot66LrwWFEMONvrIBh3A?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 2263438 Khan Academy
Types of Bond in chemistry are explained in this video. The explanation of chemical bonding and different types of chemical bonds that are explained in this video include ionic bonds, covalent bonds, coordinate bonds, and hydrogen bonds. Ionic Bond: Ionic bonding is seen when two atoms form a bond by donating or accepting electrons. In this type of chemical bonding, there is an electrostatic attraction between the ions which are oppositely charged. Covalent Bond: In covalent bonding, two atoms share electrons to be able to attain the configuration of their nearest noble gas. It is also called a molecular bond and is characterized by electrons sharing between atoms. Coordinate bond: In the case of coordinate bonding, both the electrons that form the bond come from the same atom. Coordinate bond is also known as a coordinate covalent bond or a dative covalent bond. Hydrogen Bond: Hydrogen bonding is a type of electrostatic attraction and is seen when a hydrogen atom which is bonded to a highly electronegative atom (like Nitrogen, Oxygen, Fluorine) comes close to another adjacent atom having a lone pair of electrons. Get more information about the types of bond here- https://byjus.com/chemistry/ionic-covalent-and-coordinate-bond/ Thank you for watching. If you liked this video, please subscribe to our channel and press the like button. Click on the bell icon to turn on notifications and you will never miss out on our latest videos! Explore more content like this on our channel. Still have a doubt about this topic? Or Have an idea/ suggestion for a new video? Please comment below.
Views: 15173 BYJU'S
If the atoms in a bond have a difference in electronegativity of 0 -- 0.3 the bond is considered non-polar, 0.4 to 1.7 is considered a polar bond. In this case the electrons in the bond are attracted to wards the more electronegative atom. A big difference in electronegativies means that one atom "loves" electrons much more than the other - and will pull the electron off, instead of sharing = ionic bonding = polar bonds here is not appropriate terminiology. Polar/non-polar refers to covalent bonds only.
Views: 33788 Richard Thornley
Ionic bond is the transfer of electrons from a metallic atom to a non-metallic atom. Sodium Chloride: Oppositely charged sodium and chloride ions are held by a strong electrostatic force of attraction known as Ionic Bond.
Views: 1118431 It's AumSum Time
Learn the basics about the covalent bonding of water, when learning about covalent bonding within properties of matter. Water is made from one oxygen atom and two hydrogens. The oxygen has 6 electrons in its outer shell, but it really wants to have 8 to have a full shell. The hydrogens have one outer shell electron, but want to have two. The atoms share their electrons, forming covalent bonds. So all three atoms have full outer shells, and create a water molecule. Water has two covalent bonds. In water, the bonding electrons spend most of their time nearer the oxygen atom, because it is more ELECTRONEGATIVE. This means that it is electron withdrawing. As the negatively charged electrons are nearer the oxygen atom, the oxygen atom becomes a little bit negative itself, while the hydrogens become a little positive. This is called delta positive and delta negative. Water doesn’t just have any old covalent bonds; it has what we call POLAR COVALENT bonds and is a POLAR molecule. This is really important as it affects how water behaves and reacts with other elements. SUBSCRIBE to the Fuse School YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. JOIN our platform at www.fuseschool.org This video is part of 'Chemistry for All' - a Chemistry Education project by our Charity Fuse Foundation - the organisation behind The Fuse School. These videos can be used in a flipped classroom model or as a revision aid. Find our other Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV Twitter: https://twitter.com/fuseSchool Access a deeper Learning Experience in the Fuse School platform and app: www.fuseschool.org Follow us: http://www.youtube.com/fuseschool Friend us: http://www.facebook.com/fuseschool This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: [email protected]
Views: 38343 FuseSchool - Global Education
This video looks at how to determine polarity in a molecule by understanding how the bond polarities, molecule shape, and outside atoms influence polarity using bond polarity vector addition. This includes a flow chart that guides you through the various decisions needed to determine if a molecule is polar or not. Wikipedia 1/1/2018: In chemistry, polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole or multipole moment. Polar molecules must contain polar bonds due to a difference in electronegativity between the bonded atoms. A polar molecule with two or more polar bonds must have a geometry which is asymmetric in at least one direction, so that the bond dipoles do not cancel each other. While the molecules can be described as "polar covalent", "nonpolar covalent", or "ionic", this is often a relative term, with one molecule simply being more polar or more nonpolar than another. However, the following properties are typical of such molecules. A molecule is composed of one or more chemical bonds between molecular orbitals of different atoms. A molecule may be polar either as a result of polar bonds due to differences in electronegativity as described above, or as a result of an asymmetric arrangement of nonpolar covalent bonds and non-bonding pairs of electrons known as a full molecular orbital. Polar molecules The water molecule is made up of oxygen and hydrogen, with respective electronegativities of 3.44 and 2.20. The dipoles from each of the two bonds (red arrows) add together to make the overall molecule polar. A polar molecule has a net dipole as a result of the opposing charges (i.e. having partial positive and partial negative charges) from polar bonds arranged asymmetrically. Water (H2O) is an example of a polar molecule since it has a slight positive charge on one side and a slight negative charge on the other. The dipoles do not cancel out resulting in a net dipole. Due to the polar nature of the water molecule itself, polar molecules are generally able to dissolve in water. Other examples include sugars (like sucrose), which have many polar oxygen–hydrogen (−OH) groups and are overall highly polar. If the bond dipole moments of the molecule do not cancel, the molecule is polar. For example, the water molecule (H2O) contains two polar O−H bonds in a bent (nonlinear) geometry. The bond dipole moments do not cancel, so that the molecule forms a molecular dipole with its negative pole at the oxygen and its positive pole midway between the two hydrogen atoms. In the figure each bond joins the central O atom with a negative charge (red) to an H atom with a positive charge (blue). The hydrogen fluoride, HF, molecule is polar by virtue of polar covalent bonds – in the covalent bond electrons are displaced toward the more electronegative fluorine atom. Ammonia, NH3, molecule the three N−H bonds have only a slight polarity (toward the more electronegative nitrogen atom). The molecule has two lone electrons in an orbital, that points towards the fourth apex of the approximate tetrahedron, (VSEPR). This orbital is not participating in covalent bonding; it is electron-rich, which results in a powerful dipole across the whole ammonia molecule. Resonance Lewis structures of the ozone molecule In ozone (O3) molecules, the two O−O bonds are nonpolar (there is no electronegativity difference between atoms of the same element). However, the distribution of other electrons is uneven – since the central atom has to share electrons with two other atoms, but each of the outer atoms has to share electrons with only one other atom, the central atom is more deprived of electrons than the others (the central atom has a formal charge of +1, while the outer atoms each have a formal charge of −1⁄2). Since the molecule has a bent geometry, the result is a dipole across the whole ozone molecule. When comparing a polar and nonpolar molecule with similar molar masses, the polar molecule in general has a higher boiling point, because the dipole–dipole interaction between polar molecules results in stronger intermolecular attractions. One common form of polar interaction is the hydrogen bond, which is also known as the H-bond. For example, water forms H-bonds and has a molar mass M = 18 and a boiling point of +100 °C, compared to nonpolar methane with M = 16 and a boiling point of –161 °C. Nonpolar molecules A molecule may be nonpolar either when there is an equal sharing of electrons between the two atoms of a diatomic molecule or because of the symmetrical arrangement of polar bonds in a more complex molecule. Not every molecule with polar bonds is a polar molecule. Carbon dioxide (CO2) has two polar C=O bonds, but the geometry of CO2 is linear so that the two bond dipole moments cancel and there is no net molecular dipole moment; the molecule is nonpolar.
Views: 133859 Crash Chemistry Academy
Hello Guys, Today we are going to discuss a very important topic for IIT jee Mains, Advance, NEET and AIIMS from Periodic table, its all about Electronegativity. Basically, electronegativity refers to how hard the nucleus of an atom pulls on electrons in its orbit. By “bonding pair of electrons,” that just means that in a chemical bond between two atoms, be it ionic or covalent, the bonding atom with greater electronegativity will pull the shared electrons closer to itself. The fundamental reason behind this is that the positive nucleus attracts the negative electrons. The more positive charge in the nucleus, the greater the electronegativity. That’s only one part of the equation though. The other depends on how many shells the atom has. The more shells, the farther away from the positive nucleus the outermost electrons will be, and thus the weaker the attraction. A highly electronegative atom will have an ideal combination of large positive charge and few shells. That’s why in the periodic table, the most electronegative atoms are to the top right. Going to the right of the table = more positive charge, and going up = fewer shells. Electronegativity is important cause the difference in electronegativity between two bonding atoms determines whether it is a covalent or ionic bonds. Covalent bonds have a small difference in electronegativity (less than 1.9), while ionic bonds have a large difference (greater than 1.9). Other Details on the topic has been deal in details inside the lecture. Hope it will be extremely helpful for aspirants. Thanks Team IITian explains ----------------------------------------------------------------------------------------------------------- Watch our other videos. -------------------------------------------------------------------------------------------------- First Point of Difference Rule | Organic Chemistry | Explained by IITian | Jee Mains, Advance | NEET https://youtu.be/URBmaMusB60 --------------------------------------------------------------------------------------------------- Oxides of Phosphorus | Tricks and Techniques | IIT Jee Mains, Advance | BITSAT | NEET & AIIMS https://youtu.be/4miyRntMM_0 ---------------------------------------------------------------------------------------------------- Phosphine Gas | Tricks and Techniques | IIT Jee Mains, Advance | BITSAT | NEET, AIIMS https://youtu.be/NTsUz9UClC0 ----------------------------------------------------------------------------------------------------- Potassium Permanganate | d Block Chemistry | Jee Mains, Advance | NEET | BITSAT and AIIMS https://youtu.be/O8d9w8aCzWc ------------------------------------------------------------------------------------------------------ Neighbouring Group Participation | Tricks and Tech | IIT-Jee Mains, Advance | BITSAT | NEET & AIIMS https://youtu.be/52p9yk0STZw -------------------------------------------------------------------------------------------------------- Carbocations and Carbanions | General Organic Chemistry | Explained by IITian | Jee Mains & Advance https://youtu.be/7EuX42pO8HQ ---------------------------------------------------------------------------------------------------------- Tricks for Qualitative Analysis | Cations | Jee Mains, Advance, NEET, BITSAT and AIIMS https://youtu.be/3sOCGx5NC2o ----------------------------------------------------------------------------------------------------------- Tricks to Remember p Block Reactions | Group 15 | Jee Mains, Advance, NEET, BITSAT & AIIMS https://youtu.be/GSxtE_nzkyE ----------------------------------------------------------------------------------------------------------- Trick for Bond Angle | Developed by IITian | IIT Jee Mains, Advance, NEET, BITSAT & AIIMS https://youtu.be/tuXssF-FSNs ----------------------------------------------------------------------------------------------------------- Banana Bond in Chemistry | Explained by IITian | IIT Jee Mains, Advance, BITSAT, NEET and AIIMS https://youtu.be/vfLtcwstrtQ
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Helios Educore Pvt. Ltd. Sunshine Business Park, Plot - 5A, Sector-94, Noida (UP) INDIA-201301 Chemistry Video Lectures to prepare for JEE-Main, JEE-Advanced, NEET & and Board Exams. visit us : www.helioseducore.com Email : [email protected] Mob. : 08010000068 For Purchase : http://helioseducore.com/product-category/buy-book/ or Amazon Search Er Dushyant Kumar
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Follow us at: https://plus.google.com/+tutorvista/ Check us out at http://chemistry.tutorvista.com/organic-chemistry/polar-covalent-bond.html Polar Covalent Bond The polar covalent bond, called a polar bond for short, is a variation on the standard covalent bond. It is defined by a difference in electronegativity values of 0.4 or greater, the meaning of which shall be made clear below. All covalent bonds are polar to some extent unless the bond is between two atoms of the same element. It is best to start with a review of the standard covalent bond. This is the sharing of electrons between two elements in order to have 8 electrons in the outer shell. The only exception to this is Hydrogen, which is stable with 2 electrons in its outer shell. The structure of each element gives it a different electronegativity value. This value is effectively the strength of the pull of that atom's nucleus on the electrons around it. The higher the value the greater the pull. A covalent bond is electrons moving around two atoms; they are being shared. It is the difference between the electronegativity values that determines which atom gets the larger share of the electron's time. If the electrons spend more of their time around one atom out of the pair then that region will have more negative charge than the other atom. Carbon to Carbon Bond The first example is the standard Carbon to Carbon bond such as occurs in the alkane molecules. We are just considering the bond that these two atoms share without regard for any other bonds that this pair of atoms may be involved in. First we can draw the two atoms as shown below. The pair of electrons that form the bond are drawn between them. The values written below the atoms are from the electronegativities table. The difference is calculated which in this case is zero. A polar covalent bond occurs every time Hydrogen bonds with Nitrogen, Oxygen or Fluorine as these are the three elements with the highest electronegativity values. They all have a difference of 0.9 or greater with Hydrogen. These bonds are called polar because of the different charges. These act like magnets and so polar molecules are pulled toward each other, with opposite charges attracting. The polar covalent bond is commonplace. Water is a liquid at room temperature because of these bonds. Ammonia (NH3) dissolves readily in water because of these bonds. This model even explains why water expands as it freezes. A polar covalent bond involving Hydrogen with any of the three most electronegative elements of Nitrogen, Oxygen and Fluorine is especially strong and is called a Hydrogen bond. Please like our facebook page http://www.facebook.com/tutorvista
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Chemistry: Ionic Bonds vs Covalent Bonds (which is stronger?) Ionic Bonds and Covalent bonds are both considered STRONG intramolecular forces. But do you know which is stronger? You'd think this was a straightforward question. But there's more to it! Each of these bonds has a range of strengths. In this video, we'll discuss how the strength of Ionic Bonds and Covalent bonds are measured so you can compare two chemical bonds. You can click on the links below to jump to sections in the lesson: 0:25 Definitions of ionic and covalent bonds 1:45 Measuring the strength of ionic bonds (lattice energy) 3:08 Some typical lattice energies of ionic bonds 3:50 Measuring the strength of covalent bonds (bond enthalpy) 4:19 Some typical bond enthalpies of covalent bonds Here are our more in-depth videos about the individual bonds. Ionic Bonds: http://bit.ly/1UWsJRL Covalent Bonds: http://bit.ly/1HYZmow3 Metallic Bonds: http://bit.ly/1UoASiZ Intermolecular Forces: http://bit.ly/2xAnoMt ///////////////////////// Our Periodic Table app is FREE in the Google Play store! http://goo.gl/yg9mAF Don't miss our other chemistry videos: https://www.youtube.com/watch?v=aQw9G... Please Subscribe so you'll hear about our newest videos! http://bit.ly/1ixuu9W If you found this video helpful, please give it a "thumbs up" and share it with your friends! ///////////////////////// To support more videos from Socratica, visit Socratica Patreon https://www.patreon.com/socratica http://bit.ly/29gJAyg Socratica Paypal https://www.paypal.me/socratica We also accept Bitcoin! :) Our address is: 1EttYyGwJmpy9bLY2UcmEqMJuBfaZ1HdG9 ///////////////////////// We recommend the following books: Brown and LeMay Chemistry: The Central Science 13th edition: http://amzn.to/2n5SXtB 14th edition: http://amzn.to/2mHk79f McGraw/Hill Chemistry by Chang & Goldsby http://amzn.to/2mO2khf Uncle Tungsten: Memories of a Chemical Boyhood by Oliver Sacks http://amzn.to/2nlaJp0 Napoleon's Buttons: How 17 Molecules Changed History http://amzn.to/2lJZzO3 ///////////////////////// Written and Produced by Kimberly Hatch Harrison About our instructor: Kimberly Hatch Harrison received degrees in Biology and English Literature from Caltech before working in pharmaceuticals research, developing drugs for autoimmune disorders. She then continued her studies in Molecular Biology (focusing on Immunology and Neurobiology) at Princeton University, where she began teaching as a graduate student. Her success in teaching convinced her to leave the glamorous world of biology research and turn to teaching full-time. Kimberly taught AP Biology and Chemistry at an exclusive prep school for eight years. She is now the head writer and producer of Socratica Studios. Creative Commons Picture Credits: Butter http://en.wikipedia.org/wiki/File:Western-pack-butter.jpg Author: Steve Karg, aka Skarg sodium chloride 3D lattice http://en.wikipedia.org/wiki/File:NaC... Author: Raj6
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Learning Objective: Use electronegativity to classify bonds as polar covalent, pure covalent, or ionic Topics: polar covalent, pure covalent, electronegativity
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in this video you will learn easy and fast way to remember Ionic and covalent bond with a small trick. in this you will also learn what is anion and cation ? please channel ko subscribe karey https://www.youtube.com/channel/UCIUatIgOsHrko9SNv_dQczw Please Like and follow us for more update Facebook: https://www.facebook.com/technikclass/ instagram: https://www.instagram.com/technikclasses/
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What is Electronegativity? Write your answer on a piece of paper. Electronegativity and Polarity Learning Outcomes: Describe electronegativity in terms of an atom attracting bonding electrons in a covalent bond (Grade C) Explain how a permanent dipole can result in a polar bond (Grade B) Link electronegativity to the bonding type on a compound. (Grade A) Key words: Electronegativity, permanent dipole, polar bond, polar molecule Electronegativity and Polarity Definition: Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons in a covalent bond. Therefore: The greater the electronegativity of an atom, the more it attracts electrons towards it. What factors will affect how electronegative an atom is? Electronegativity and Polarity The factors affecting electronegativity are the same as those that affect ionisation energies: Atomic charge; Distance from the nucleus (Atomic Radius); Electron shielding Bonds between Identical atoms In a covalent bond, electrons are shared. When the 2 atoms are identical, the electrons are shared equally. Bonds between different atoms The more electronegative atom will have a greater share of the electrons. E.g. Cl is more electronegative than H so in a molecule of HCl, the electrons are pulled towards the Chlorine. Charge Difference The charge difference between H and Cl is called a permanent dipole. HCl is therefore a polar covalent bond. HCl is non-symmetrical so it is a polar molecule. Non-polar molecules. Symmetrical molecules are non-polar even though they contain polar bonds. Key Concept The greater the difference in electronegativity between the bonded atoms, the greater the permanent dipole. The more electronegative atom will take the δ- charge. Linus Pauling Pauling Scale Across a Period Across a Period Down a Group Down a Group Covalent Ionic No difference between electronegativity = non polar covalent bond. Small difference in electronegativity = polar covalent bond. Large difference in electronegativity = ionic bond. Non Polar Covalent Bond No difference between electronegativity = non polar covalent bond. Polar Covalent Bond Small difference in electronegativity = polar covalent bond. Ionic Bonding Large difference in electronegativity = ionic bond.
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IB Chemistry Topic 4.2 Covalent bonding How to determine if a compound is covalent or ionic (degree of covalent character), how polar the covalent bond is and if the molecule itself is polar. A look also into the strength of the covalent bond. PPTs and quizzes are available on http://www.mrwengibchemistry.com/ 0:16 Covalent bond definition 1:41 van Arkel-Ketelaar Triangle of Bonding 3:25 Polarity 5:26 Bond strengths PPT direct link: https://mix.office.com/watch/5dz16vtfdrhp Free online SL Quiz: http://www.proprofs.com/quiz-school/story.php?title=NzYzNzIxVS2G Free online HL Quiz: http://www.proprofs.com/quiz-school/story.php?title=NzYzNzIyLP0P 4.2. Covalent bonding SL • A covalent bond is formed by the electrostatic attraction between a shared pair of electrons and the positively charged nuclei. • Single, double and triple covalent bonds involve one, two and three shared pairs of electrons respectively. • Bond length decreases and bond strength increases as the number of shared electrons increases. • Bond polarity results from the difference in electronegativities of the bonded atoms. • Deduction of the polar nature of a covalent bond from electronegativity values. Connect with me: Facebook: https://www.facebook.com/IBChemistry2016/ Twitter: https://twitter.com/andrewweng0406 Google plus: https://plus.google.com/u/0/108611113268141564345 Pinterest: https://www.pinterest.com/mrandrewweng040/ib-chemistry/
Views: 11346 Andrew Weng
HELLO GENIUS ...... IN THIS VIDEO WE LEARN ABOUT CHEMICAL BONDING BASICS HOW THEY DISCOVERED ,HOW THEY INTERACT WITH EACH OTHER, HOW MANY TYPES ARE THERE . IN THE VIDEO WE COVER THE BASIS OF THERE TYPES ALSO SO YOU CAN EASILY LEARN IT WITH THE SIMPLE EXPLANATION ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- BE CURIOUS BE GENIUS ------------------------------------------------------------------------------------------------------------------------------------------------ Thanks for watching
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In this video, Rakhi will explain what Electronegativity is and what are the various factors which affect the Electronegativity! Later, she discuss the periodic trends of Electronegativity observed across the periodic table. Besides that she explains the Pauling Scale used for measuring Electronegativity of various elements. In the end, she will also explain how the nature of bond between two elements depends upon the difference in their Electronegativity. The video also helps the viewer to understand formation of ionic bond, polar covalent bond or non-polar covalent bond. Happy Learning! Keep Watching Chemistory!! For regular updates, you may follow us on - Instagram: www.instagram.com/chemistory.in Facebook: www.facebook.com/TheChemistory Twitter: www.twitter.com/TheChemistory Visit: www.chemistory.in
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Check us out at http://chemistry.tutorvista.com/physical-chemistry/ionic-bonding.html Ionic Bonding An ionic bond is a type of chemical bond that involves a metal and a nonmetal ion (or polyatomic ions such as ammonium) through electrostatic attraction. In short, it is a bond formed by the attraction between two oppositely charged ions. The metal donates one or more electrons, forming a positively charged ion or cation with a stable electron configuration. These electrons then enter the non metal, causing it to form a negatively charged ion or anion which also has a stable electron configuration. The electrostatic attraction between the oppositely charged ions causes them to come together and form a bond. For example, common table salt is sodium chloride. When sodium (Na) and chlorine (Cl) are combined, the sodium atoms each lose an electron, forming a cation (Na+), and the chlorine atoms each gain an electron to form an anion (Cl−). These ions are then attracted to each other in a 1:1 ratio to form sodium chloride (NaCl). Na + Cl → Na+ + Cl− → NaCl Electron configurations of lithium and fluorine. Lithium has one electron in its outer shell, held rather loosely because the ionization energy is low. Fluorine carries 7 electrons in its outer shell. When one electron moves from lithium to fluorine, each ion acquires the noble gas configuration. The bonding energy from the electrostatic attraction of the two oppositely-charged ions has a large enough negative value that the overall bonded state energy is lower than the unbonded state The removal of electrons from the atoms is endothermic and causes the ions to have a higher energy. There may also be energy changes associated with breaking of existing bonds or the addition of more than one electron to form anions. However, the attraction of the ions to each other lowers their energy. Ionic bonding will occur only if the overall energy change for the reaction is favourable when the bonded atoms have a lower energy than the free ones. The larger the resulting energy change the stronger the bond. The low electronegativity of metals and high electronegativity of non-metals means that the energy change of the reaction is most favorable when metals lose electrons and non-metals gain electrons. Pure ionic bonding is not known to exist. All ionic compounds have a degree of covalent bonding. The larger the difference in electronegativity between two atoms, the more ionic the bond. Ionic compounds conduct electricity when molten or in solution. They generally have a high melting point and tend to be soluble in water. Please like our facebook page http://www.facebook.com/tutorvista Follow us at: https://plus.google.com/+tutorvista/
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This organic chemistry video tutorial provides a basic introduction into bond strength and bond length of single bonds, double bonds, and triple bonds. It also discusses the relative strength of sigma bonds and pi bonds. Subscribe: https://www.youtube.com/channel/UCEWpbFLzoYGPfuWUMFPSaoA?sub_confirmation=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor https://www.facebook.com/MathScienceTutoring/ New Organic Chemistry Playlist https://www.youtube.com/watch?v=6unef5Hz6SU&index=1&list=PL0o_zxa4K1BXP7TUO7656wg0uF1xYnwgm&t=0s
Views: 16501 The Organic Chemistry Tutor