Mention the geometrical shapes of the following molecules :
`H_2 O`

Explanation

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

### Step 1: Identify the central atom
The central atom in H₂O is oxygen (O).

### Step 2: Determine the valence electrons
Oxygen has 6 valence electrons. Each hydrogen atom contributes 1 electron, giving a total of 2 electrons from the two hydrogen atoms. Therefore, the total number of electrons around the oxygen atom is:
- 6 (from O) + 2 (from 2 H) = 8 electrons.
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