Question

mention two ions formed by non-metals from the following categories.

1. anions having -1 charge

2. anions having -2 charge

3. anions having -3 charge

Answer 1

Non-metals having:
a) -1 charge:
F^-, Cl^-, I^- etc
b) -2 charge:
O^2-, S^2-, Se^2- etc
c) -3 charge:
N^3-, P^-3, As^3- etc