What is the shape of a water molecule ?

Explanation

To determine the shape of a water molecule (H₂O), we can follow these steps:

### Step 1: Identify the central atom
The molecular formula of water is H₂O. In this molecule, the central atom is oxygen (O).

**Hint:** The central atom in a molecule is typically the one that can form the most bonds or is the least electronegative.

### Step 2: Determine the valence electrons
...