Arrange the following elements in the increasing order of their:
(i) atomic radii
(ii) non metallic character. Give reason for your answer.
Li, Be, F, N

Explanation

To arrange the elements Li, Be, F, and N in increasing order of their atomic radii and non-metallic character, we need to understand the trends in the periodic table.

### Step 1: Arrange the elements in increasing order of atomic radii

1. **Understanding Atomic Radii**: Atomic radius is the distance from the nucleus to the outermost shell of an electron. Atomic radii generally decrease across a period from left to right due to the increasing nuclear charge, which pulls the electrons closer to the nucleus. Conversely, atomic radii increase down a group due to the addition of electron shells.

2. **Elements in Question**: The elements are:
- Lithium (Li) - Group 1, Period 2
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