Considering the elements `B, Al, Mg` and `K`, the correct order of their metallic character is

Options

A. `B gt Al gt Mg gt K`
B. `Al gt Mg gt B gt K`
C. ` Mg gt Al gt K gt B`
D. `K gt Mg gt Al gt B`

Explanation

To determine the correct order of metallic character for the elements B (Boron), Al (Aluminium), Mg (Magnesium), and K (Potassium), we can follow these steps:

### Step 1: Identify the Group and Period of Each Element
- **Boron (B)**: Group 13, Period 2
- **Aluminium (Al)**: Group 13, Period 3
- **Magnesium (Mg)**: Group 2, Period 3
- **Potassium (K)**: Group 1, Period 4

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