Question

A metalloid is

• A. Bi
• B. Sb
• C. P
• D. Se

Answer 1

The Correct Option is B

A metalloid is an element that has properties intermediate between metals and non-metals. These elements typically exhibit characteristics of both metals and non-metals, making them useful in various applications, especially in semiconductors.

• (A) Bi (Bismuth): Bismuth is a metal, not a metalloid.
• (B) Sb (Antimony): Antimony is a metalloid. It has some metallic properties, such as being a good conductor of electricity, and some non-metallic properties, like being brittle in its solid form.
• (C) P (Phosphorus): Phosphorus is a non-metal, not a metalloid.
• (D) Se (Selenium): Selenium is also a non-metal, not a metalloid.

The correct answer is (B) Sb (Antimony) because it is a metalloid.

Answer 2

A metalloid is an element that has properties intermediate between metals and non-metals. They are often semiconductors and exhibit characteristics of both metals and non-metals.

Let's examine each option:

• (A) Bi (Bismuth): Bismuth is a metal, not a metalloid. It is a heavy metal with metallic properties like good conductivity.
• (B) Sb (Antimony): Antimony is a metalloid. It has properties that are between metals and non-metals. For instance, it is a poor conductor of electricity, like non-metals, but can be alloyed with metals and has some metallic properties.
• (C) P (Phosphorus): Phosphorus is a non-metal. It exists in several allotropes, including white and red phosphorus, and does not have the properties of a metalloid.
• (D) Se (Selenium): Selenium is also a non-metal. It is chemically similar to sulfur and has some metallic properties but is not classified as a metalloid.