Which of the following element is metalloid

Options

A. Bi
B. Sn
C. Ge
D. C

Explanation

To determine which of the given elements is a metalloid, we can follow these steps:

### Step 1: Understand the Definition of Metalloids
Metalloids are elements that have properties intermediate between metals and non-metals. They typically exhibit a mix of characteristics from both categories.

### Step 2: List the Elements
From the video transcript, the elements mentioned are:
- Boron (B)
- Silicon (Si)
- Gallium (Ga)
- Arsenic (As)
- Antimony (Sb)
- Bismuth (Bi)
- Carbon (C)

### Step 3: Identify the Metalloids
Based on the periodic table and the common classification of elements:
- **Boron (B)**: Metalloid
- **Silicon (Si)**: Metalloid
- **Gallium (Ga)**: Metal
- **Arsenic (As)**: Metalloid
- **Antimony (Sb)**: Metalloid
- **Bismuth (Bi)**: Metal
- **Carbon (C)**: Non-metal

### Step 4: Conclusion
The elements that are classified as metalloids from the list are:
- Boron (B)
- Silicon (Si)
- Arsenic (As)
- Antimony (Sb)

### Final Answer
Among the elements listed, **Boron (B)**, **Silicon (Si)**, **Arsenic (As)**, and **Antimony (Sb)** are metalloids.