Why tetrahalides other than carbon can increase its co-ordination number?

Explanation

To understand why tetrahalides other than carbon can increase their coordination number, we need to analyze the electronic structure and properties of the elements in the same group as carbon.

### Step-by-Step Solution:

1. **Identify the Group Elements**:
- The elements in the same group as carbon (Group 14) are carbon (C), silicon (Si), germanium (Ge), tin (Sn), and lead (Pb).

2. **Examine Carbon's Structure**:
...