Group `15` elements are commonly known as.

Options

A. Halogens
B. Chalcogens
C. Pnicogens
D. Normal elements

Answer

**Step-by-Step Solution:**

1. **Identify the Group 15 Elements**:
- The elements in Group 15 of the periodic table include Nitrogen (N), Phosphorus (P), Arsenic (As), Antimony (Sb), and Bismuth (Bi).

2. **Determine the Common Name**:
- Group 15 elements are commonly referred to as "Nitrogen Family" or "Pnictogens". The term "Pnictogen" is derived from the Greek word "pnigein", which means "to choke" or "to stifle".

3. **Analyze the Options Given**:
- The options provided are: Halogen, Chalogen, Nicogen, and Normal Element.
- Halogens are Group 17 elements, Chalogens refer to Group 16 elements, and "Normal Element" is not a recognized term for any group.

4. **Select the Correct Answer**:
- Among the options, "Nicogen" is a variation of the term "Pnictogen" and is used to refer to the nitrogen family. Therefore, the correct answer is "Nicogen".

5. **Conclusion**:
- The Group 15 elements are commonly known as "Pnictogens" or "Nicogens".

**Final Answer**: Group 15 elements are commonly known as "Pnictogens" or "Nicogens".

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