Which elements of group `15` are metalloids ?

Options

A. N
B. As
C. Sb
D. Bi

Explanation

To determine which elements of Group 15 are metalloids, we can follow these steps:

### Step 1: Identify Group 15 Elements
Group 15 of the periodic table includes the following elements:
- Nitrogen (N)
- Phosphorus (P)
- Arsenic (As)
- Antimony (Sb)
- Bismuth (Bi)

### Step 2: Understand the Definition of Metalloids
Metalloids are elements that exhibit properties intermediate between metals and non-metals. They are often characterized by their ability to conduct electricity better than non-metals but not as well as metals. Common metalloids include elements like silicon and germanium.

### Step 3: Analyze Each Element in Group 15
- **Nitrogen (N)**: A non-metal.
- **Phosphorus (P)**: A non-metal.
- **Arsenic (As)**: A metalloid.
- **Antimony (Sb)**: A metalloid.
- **Bismuth (Bi)**: Generally considered a metal.

### Step 4: Conclusion
From the analysis, the elements of Group 15 that are classified as metalloids are:
- **Arsenic (As)**
- **Antimony (Sb)**

### Final Answer
The metalloids in Group 15 are Arsenic (As) and Antimony (Sb).

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