How is the variability in oxidation states of transition metals different from that of the non transition metals?
Illustrate with examples.

Explanation

To understand the variability in oxidation states of transition metals compared to non-transition metals, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Definition of Oxidation States**:
Oxidation states refer to the charge of an atom in a compound, indicating how many electrons have been lost or gained.

2. **Transition Metals**:
...