Identify the element from the following :

Options

A. air
B. iodine vapour
C. water
D. amalgam

Explanation

To identify the element from the given options, we will analyze each option based on the definitions of elements, compounds, and mixtures.

### Step-by-Step Solution:

1. **Analyze the First Option: Air**
- Air is a mixture of various gases, such as nitrogen (N2), oxygen (O2), and carbon dioxide (CO2).
- Since air is not a pure substance and contains multiple types of atoms, it cannot be classified as an element.
- **Conclusion**: Air is not an element.
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