Predict the blocks, periods and groups to which following elements belong:
Mg

Explanation

To determine the block, period, and group of the element magnesium (Mg), we can follow these steps:

### Step 1: Determine the Atomic Number
The atomic number of magnesium (Mg) is 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 written as:
- 1s² 2s² 2p⁶ 3s²
...