Question

Please draw 2 Lewis structures of BCl3. The first Lewis structure should follow the octet rule while the second structure does not follow the octet rule. Please use formal charge on both structures and identify which of the two is the more stable Lewis structure. If the one that follows the octet rule is more stable, please draw a smiley face. If the structure which does not follow the octet rule is more stable, please specify to which exception of the octet rule this structure belongs.

Answer 1

Total electrons 3x7 +3 - 24 lesis stauctune of B3 (4) Hene cL atams 3 arc Same nature So fomma cnanse of cl 7- -7 6/2 aud, fommal cuanse of 3 O- nonbanding eectren Bonding eotrn fm mal Chanse - valeuce electren 2 (2) Anmal chansc of B - - 0 - 7 -6- ehanse f formad of - - : +1 u(2) meaus turo ype, of cu atrmy Here NoW fra om the lewis a> stouctune of BU 3 in tuo(2) h an mone stayla than (2) a is (4) Bond (+ change on Cl ( Chanse n follos the octet nule but in But stauctune (2) nat s elee ron s eleetrm

Exceptian neasn howeven, nesuts in a fonma This resun auce structune 0f an the duubly bonded c atous and - an Change high electnonesetivity of c makes separatin of Change unlikely aud sugsests that atom. The fhe B this twis Ts not the mot impontaut nesonauce staucture efm