Name: 1. Based on the DH data given, which compound is the most stable? a. NO.g), +9.7 kJ/mol b. H,S(g), -20.6 kJ/mol C. N.H.(g), +94.5 kJ/mol d. PH2(g), +5.4 kJ/mol e. NH;(g), -46.4 kJ/mol 2. Sodium forms a monatomic ion which has the electronic configuration of a noble gas. What is the electron configuration of that noble gas? Is? a. b. c. d. e. Is 2p 1s 2s 2p 1s 2s 2p 3s2 1s 2s 2p 3s 3p 3. The octet rule is generally followed for cations of which elements? a. b. c. d. e. post transition metals and transition metals Group 1A and Group IIA metals Group IVA elements lanthanide elements actinide elements 4. Which ion of uranium has a noble gas configuration? a. b. C. d. e