A metal 'M' has the electronic configuration 2, 8, 3 - and occurs in nature as `M_2O_3 2H_2O`. It is more reactive than Zinc. Answer the following question:
Write a chemical equation illustrating the use of this metal for joining cracked railway lines.

Explanation

To answer the question regarding the use of metal 'M' for joining cracked railway lines, we need to follow a series of steps to derive the chemical equation.

### Step-by-Step Solution:

1. **Identify the Metal:**
- The electronic configuration given is 2, 8, 3. This indicates that the metal has 13 electrons.
- The atomic number of the metal is therefore 13, which corresponds to Aluminum (Al).

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