Among Na and Mg, which is more reactive and why?

Explanation

To determine which element is more reactive between sodium (Na) and magnesium (Mg), we can analyze their electronic configurations and the implications for their reactivity.

### Step 1: Identify the Electronic Configurations
- Sodium (Na) has the electronic configuration:
\[ 1s^2 \, 2s^2 \, 2p^6 \, 3s^1 \]
- Magnesium (Mg) has the electronic configuration:
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