Question

Radioactive element in the halogen group A) Iodine B) Astatine C) Chlorine D) Bromine

Answer 1

Answer:

Astatine

Explanation:

Answer 2

Answer:

The name of radioactive halogen is Astatine. It's chemical symbol is \displaystyle AtAt. Its atomic number is 8585. It belongs to sixth period and 17th group of the periodic table.

OR

Fluorine

A radioactive element in the halogen group is Fluorine. It possesses the highest electro-negativity of all the elements. A decrease in the electro-negativity is shown within the family of halogen elements in the following order- fluorine, chlorine, bromine, iodine and astatine.

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