04CHM114_0301

04CHM114_0301 - WWW—Hi3 L'" N ° ' 4' . (mm. mm....

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Unformatted text preview: WWW—Hi3 L'" N ° ' 4' . (mm. mm. 1.} Bmary compounds: Put the element nearest the center of the PT in the middle of the structure. CO2 CH (ethane) 530:5 a Ozczo common name, \ acetylene) WCECIH Questions like: Which of the following is the correct Lewis structure for ethane? Polyethylene H H H _ I I ‘ ~ 1 4 l J‘C-‘fiéc-Q—C-Q-C-c —Lh .. ' ' ‘4 ‘I " \ I; Q {Opuf' Mwsr gun—:00 a. 005m “5022.. . 9mm 2:9". 93 .EEEEQ £235. .6 3.98:". amtzoaza==wano§o \ Ternar com ounds y p /*"‘”QUMEMM-y /,»«-'-"”“('30(NH2)2 (Urea history of chem.) . ‘ 3:;th 5' “'1 WHAT DECIDES WHICH TYPE OF BOND, ionic vs covalent? Electronegativity — and "polar " covalent bonds. What is electronegativity? (electron "pulling power" - fluorine is the top dog electron puller.) ® : e (4“( LQJ‘ltut . blur-A L04 "Mu-4'“ l1: 'H-Qd'l't w. M -? +~ ' u 0 3 9.1.0.9“... n- p 0F huh-t 01' pg: ‘1‘," Li us Pauling (Caltech, Berkeley, Nobel x 2): gave us a periodic table of electron pulling powers of elements . ,x-‘iionic bonding is an appropriate description when the difference in electronegativity is greater than 1.4 6 Fig. 8.‘ (examples: I Question: Which of the following elements has the largest electronegativity? (A, B, C etc...on1y I pattern is needed to answer) ...
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04CHM114_0301 - WWW—Hi3 L'" N ° ' 4' . (mm. mm....

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