Font Paragraph Styles 1. Fully describe principles that guide electron accommodation in molecular orbitals. (6) 2. Write the Lewis structure for the following chemical species (10) (a) CO32- (b) NO3- (c) XeF6 (d) ICZ (e) PO43 3. Give the noble gas electronic configuration of the following (10) (a) P14+ (b) Y4+ (c) C03+ (d) Hf4- (e) Cu2+ 4. Describe the stability of a chemical substance in terms of (a) resonance (b) energy (f) geometry (c) bonding (d) 18-e rule (e) electron repulsion (12) 5 What does the electronic configuration of an element tell us about its stability, reactivity and physical properties (10) 6. (a) Fully explain each limitation of valence shell electron pair repulsion theory(VSEPR) (8) (10) (b) Draw fully labeled molecular diagram for Cla (C) CH4 NH, and He show same hybridization but different geometries Explain. 7. Describe factors that contribute to the stability of He molecule during its bond formation (8)​