4.0 chemical BONDING PDT sem I
What you must know as student during lecture hour...
| 4.1 Lewis Structure | a. Write Lewis dot symbol atom. b. State octet rule & describe how atoms obtain octet config. c. Describe formation bond using Lewis dot symbol. i. Ionic @ electrovalent bond ii. Covalent bond iii. Dative @ coordinate bond d. Draw Lewis structure of covalent species with - , = & ≡ bonds. e. Compare bond length between - , = & ≡ bonds. f. Determine the formal charge & most plausible Lewis structure. g. Explain exception octet rule: incomplete, expanded & odd number e. h. Explain resonance |
| 4.2 Molecular shape and polarity | a. Explain VSEPR b. Draw basic molecular shapes: linear, trigonal planar, tetrahedral, trigonal bipyramidal & octahedral. c. Predict & explain i. Shapes molecule based VSEPR. ii. bond ∡ d. Explain bond polarity & dipole moment. e. Deduce polarity molecules based shapes & resultant dipole moment. |
| 4.3 Hybridisation & orbital overlap | a. Draw & describe the formation of sigma (s) & pi (p) bonds from overlapping atomic orbitals. b. Draw & explain formation of hybrid orbitals ( sp,, sp2,sp3 , sp3d, sp3d2 ) of central atom. c. Draw orbitals overlap and label sigma (s) and pi (p) bond of a molecule. |
| 4.4 IMF | a. Describe IMF i. WDWF: · dipole-dipole interactions @ permanent dipole · London forces @ dispersion forces ii. HB. b. Explain factors influence strength WDWF. c. Explain the effects of HB on: i. BP ii. solubility iii. density H2O compared ice. |
| 4.5 MB | a. Explain formation MB using esm. b. Relate MB: i. malleability ii. ductility iii. electrical conductivity iv. thermal conductivity c. Explain the factors affect strength MB. d. Relate strength MB to BP. |
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