Question

Radioactive halogen is:

• A. Cl
• B. Br
• C. Po
• D. At

Answer 1

The correct option is D

At

The explanation for the correct answer:-

Option(D)

• Radioactive elements are elements that transmute into other elements by decaying various types of fundamental particles.
• Radioactive elements are extremely hazardous as radioactivity interferes with biological life and causes severe harm to them.
• Astatine is a radioactive element that belongs to the halogen group.

The explanation for the Incorrect answer:

Option (A)

• Cl (Chlorine) belongs to the halogen family and is toxic to human health but is not radioactive.
• Therefore, this option is incorrect.

Option(B)

• Br (Bromine) is a brown-colored liquid and this element belongs to the halogen family, it is toxic to human health but is not radioactive.
• Therefore, this option is incorrect.

Option (C)

• Po (Polonium) is a radioactive element but it belongs to Group-16, the chalcogens, and the oxygen family.
• Therefore, this option is incorrect.

Therefore, radioactive halogen is Astatine.

Hence, the correct option is (D).