2N represents two

Options

A. molecules of nitrogen
B. atoms of nitrogen
C. compounds of nitrogen
D. ions of nitrogen

Explanation

To solve the question "2N represents two," we need to analyze what "2N" means in the context of chemistry.

### Step-by-Step Solution:

1. **Understanding the Symbol**: The symbol "N" represents nitrogen, which is a chemical element.

2. **Analyzing the Prefix**: The prefix "2" in "2N" indicates that there are two entities of nitrogen.

3. **Identifying the Entities**: We need to determine what these two entities are. The options given are:
- Two molecules of nitrogen
- Two atoms of nitrogen
- Two compounds of nitrogen
- Two ions of nitrogen

4. **Determining the Correct Option**:
- **Molecules**: A molecule of nitrogen is represented as N2, which means two nitrogen atoms bonded together. Since "2N" does not indicate a bonded pair, it does not represent molecules.
- **Atoms**: "2N" indicates two separate nitrogen atoms. This is a correct interpretation.
- **Compounds**: Compounds are formed when nitrogen combines with other elements (like oxygen in NO2). "2N" does not indicate a compound.
- **Ions**: Ions are charged species. Since "N" is neutral, "2N" cannot represent ions.

5. **Conclusion**: Therefore, "2N" represents two atoms of nitrogen.

### Final Answer:
2N represents **two atoms of nitrogen**.

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