Question

What are the oxidation numbers for groups 1-18 (skip groups 3-12)

Answer 1

Group1- 1+
Group2- 2+
Group13- 3+
Group14- 4+/-
Group15- 3-
Group16- 2-
Group17- 1-
Group18- 0

Answer 2

Group 1: +1
Group 2: +2
Group 13: +3
Group 14: +4
Group 15: -3
Group 16: +II
Group 17: -1