How are elements classified based on atomicity? Explain with example.

Explanation

### Step-by-Step Solution:

1. **Understanding Atomicity**:
- Atomicity refers to the total number of atoms present in a molecule of a substance. It helps in classifying elements based on how many atoms they consist of when they exist in their molecular form.

2. **Classification of Elements Based on Atomicity**:
- Elements can be classified into three main categories based on their atomicity:
- **Monoatomic**: These are elements that consist of a single atom in their molecular form.
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