How does valency and valence electrons vary on moving from left to right in II period

Explanation

To understand how valency and valence electrons vary when moving from left to right in the second period of the periodic table, we can break down the explanation into clear steps:

### Step-by-Step Solution:

1. **Identify the Elements in the Second Period**:
The second period includes the following elements: Lithium (Li), Beryllium (Be), Boron (B), Carbon (C), Nitrogen (N), Oxygen (O), Fluorine (F), and Neon (Ne).

2. **Determine Valence Electrons**:
...