Why the elements of the second row (first short period)? exhibit a number of differences in properties from othero members of their respective families ?

Explanation

To understand why the elements of the second row (first short period) exhibit a number of differences in properties from other members of their respective families, we can break down the explanation into several key points:

### Step-by-Step Solution:

1. **Small Atomic Size**:
- The elements in the second period (Li, Be, B, C, N, O, F, Ne) have a smaller atomic size compared to their counterparts in subsequent periods. This small size leads to higher charge density, which influences their chemical behavior and bonding characteristics.

**Hint**: Consider how atomic size affects the attraction between the nucleus and electrons.
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