Question

a redioactive metal in the halogen group

Answer 1

Hey mate here is your answer

Astatine is a radioactive chemical elementwith symbol At and atomic number 85. It is the rarest naturally occurring element in the Earth's crust, occurring only as the decay product of various heavier elements. All of astatine's isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours. A sample of the pure element has never been assembled, because any macroscopic specimen would be immediately vaporized by the heat of its own radioactivity.

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Answer 2

Hey mate here is ur answer...

the halogens include the elements fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). ... Astatine is radioactive..

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