CHM 3411L Lecture Notes - Lecture 7: Ethylene, Noble Gas, Methanol
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Sp(cid:1032) = (cid:1005)(cid:1004)(cid:1013) (cid:1006)(cid:1012)" (cid:894)(cid:373)a(cid:454)i(cid:373)u(cid:373) separatio(cid:374) for (cid:1008) ele(cid:272)tro(cid:374) pairs(cid:895) Sp(cid:1031) = (cid:1005)(cid:1006)(cid:1004) (cid:894)(cid:373)a(cid:454)i(cid:373)u(cid:373) separatio(cid:374) for (cid:1007) ele(cid:272)tro(cid:374) pairs(cid:895) Sp = 180 (maximum separation for 3 electron pairs) Sp = li(cid:374)ear, (cid:1006) -(cid:271)o(cid:374)ds/ (cid:1005) triple (cid:271)o(cid:374)d (cid:894) (cid:895) Uses dots i. e. (: , ) to depict electrons and bonding. Use li(cid:374)es i. e. (cid:894) | (cid:895) to depi(cid:272)t ele(cid:272)tro(cid:374)s a(cid:374)d (cid:271)o(cid:374)di(cid:374)g. Linus pauling was the original scientist to describe the phenomena of electronegativity. Electronegativitiy runs right and up on the periodic table. Give three examples of two atoms sharing for than two electrons: ethene. How many bonds do each of these elements need in order to be happy? (reach an electronic configuration of a noble gas) N 3 bonds (1 loan pair of electrons) O 2 bonds (2 loan pair of electrons) F, cl, br, i 1 bond (3 loan pair of electrons)
