Question

A monatomic ion have an oxidation number of?

Answer 1

`"The charge on the ion.............."`

Explanation:

Ions such as `P^(3-), O^(2-), S^(2-),X^(-)` `("X=halide")`, have the same oxidation numbers as the charge on the ion:

`P^(3-), P(-III); O^(2-), O(-II); Na^(+), Na(+I); Fe^(3+), Fe(+III).`