CHM136H1 Lecture 2: Polar Covalent Bonds; Acids And Bases (Lectures 4-6)
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Polar covalent bonds covalent bond : equal sharing of e polar covalent bond : uneven sharing of e- e aren"t always shared equally due to the difference in electronegativity. Ten ) of the atoms electronegativity the ability of an atom to attract shared c- in a covalent bond periodic table trend. F- the smallest j stronger attraction of e- to nucleus ) most reactions would not occur w/out. Charge distributions in molecules colours indicate electron rich. I red ) and electron . poor ( blue ) regions arrows indicate direction of bond polarity reversed polarity inductive effect shifting of e in a bond in response to en of nearby atoms. Formal charge sometimes structures have formal charges associated with individual atoms comparing bonding of atom in molecule to valence c- structure. I as in p table ) if an atom has. 1 more c in the molecule it is shown it a charge if an atom has.