CM-UY 1004 Lecture Notes - Lecture 5: Sigma Bond, Diamagnetism, Pi Bond
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Bond polarity and electronegativity, bond polarity is a measure of how equally or unequally the electrons in any covalent bond are shared, a nonpolar covalent bond is one in which the electrons are shared equally c. In a polar covalent bond, one of the atoms exerts a greater attraction for the bonding electrons than the other: electronegativity is defined as the ability of an atom in a molecule to attract electrons to itself d. i. Generally an increase in electronegativity from left to right across a period d. ii. Generally a decrease in electronegativity as we go down a group: dipole moments e. i. Dipole moment increases as magnitude of q increases and as r increases e. ii. Usually reported in debyes, 3. 34 x 10-30 coulomb-meters e. iii. Chapter 9: molecular geometry and bonding theories: the vsepr model, a bonding pair of electrons defines a region in which the electrons are most likely to be found a. i.
