1.

Which of the following describes the halogen element ?

Answer»

They are monoatomic and FORM ion of the types `X^(-)`
They are diatomic and form ion of type `X^(+)`
They are diatomic and form ion of the type `X^(-)`
They are polyatomic and form ion of the type `X^(_)`

SOLUTION :Halogens valency shell CONTAIN SEVEN electrons they one electron to form octet configuration EXHIBIT `X^(-)` & form diatomic


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