What is the number of unpaired electrons present in the valency shell of group elements?

Explanation

To determine the number of unpaired electrons present in the valence shell of group 15 elements, we can follow these steps:

### Step 1: Identify Group 15 Elements
Group 15 of the periodic table is known as the nitrogen family. The elements in this group include:
- Nitrogen (N)
- Phosphorus (P)
- Arsenic (As)
- Antimony (Sb)
...