Represent the formation of `MgCl_(2)` with the help of diagram of their electornic configuration.

Explanation

To represent the formation of \( \text{MgCl}_2 \) using electronic configurations, we can follow these steps:

### Step 1: Determine the Atomic Number and Electronic Configuration
- **Magnesium (Mg)** has an atomic number of 12. Its electronic configuration is \( 2, 8, 2 \).
- **Chlorine (Cl)** has an atomic number of 17. Its electronic configuration is \( 2, 8, 7 \).

### Step 2: Identify Valence Electrons
- Magnesium has **2 valence electrons** in its outermost shell.
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