Magnesium (12) belongs to which group and period of periodic table.

Explanation

To determine the group and period of Magnesium (Mg) in the periodic table, we can follow these steps:

### Step 1: Identify the Atomic Number
Magnesium has an atomic number of 12. This means it has 12 protons and, in a neutral atom, also 12 electrons.

### Step 2: Write the Electronic Configuration
The electronic configuration of Magnesium can be determined by filling the orbitals according to the Aufbau principle. For Magnesium:
- The first 2 electrons fill the 1s orbital: 1s²
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