Question

the numbers of electron of outer most of halogen is​

Answer 1

There are 7 electrons in the outermost shell of Halogen.

For Ex:-

Fluorine is a Halogen          

Atomic No:- 9

Electronic configuration 2,7

so outermost shell i.e. L-shell has 7 electrons.

similarly all Halogens F, Cl, Br, I, At all have 7 electrons in their outermost shell.

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