Nội dung text 4a. Chemical Bonding 1 .pdf
Chemical Bonding Why do atoms react with one other 4 To attain stability 4 To attain stable electronic configuration To complete octet noble gas configuration To decrease Energy 4 To decrease Gibbs Bee Energy Thermodynamics Helmholtz BeeEng C A Internal Energy Enthalpy Gibbs free Energy U H a
Gibbs Bee Energy 49 ah pas S entropy G Const Temp 2 Pr ve assuming contribution TDs is negligible 49 AH G H C ve an AU P DV Const Pr assuming Pov is negligible AH DUHUt CH u GU u
Octet Theory Lewis Kossel 1 Transfer Electrovalency sharing Ionic Bond Covalent Bond equhal Inqual Na U Pure Covalent Coordinate 2 8 I 2.8.7 Covalent 2 11 2 17 e 10 18 ve ve I n Transfer Nat I 6 of Le i Bent arrow
shared e C ci pair zed o o o band Pair bp le le unshared e pair one pair Lp iii ci i ii o o o o 02 O O O o 03 O O o Unequal sharing bond pair O O 0 coordinate bond o o Donor accepter