Question

Name the halogen which is radioactive in nature

Answer 1

These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). Although astatine is radioactive and only has short-lived isotopes, it behaves similar to iodine and is often included in the halogen group..

Answer 2

Astatine is the radioactive halogen present in nature.

Explanation:

• The non-metallic elements are called halogens.

• It includes five elements. They are bromine, iodine, chlorine, fluorine, and astatine. It makes group 17 of the periodic table.

• Radioactive materials are elements which has an unstable combination of protons and neutrons.

• They lose their energy in the form of radiation.

• Astatine is rarely present in the Earth crust. Its symbol is At. Its atomic number is 85.

• It is used as a radioactive tracer in medical therapies and archaeology department.

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