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Which of the following is not a chalcoge...

Which of the following is not a chalcogen?

A

`O`

B

`S`

C

`Se`

D

`Na`

Text Solution

Verified by Experts

The correct Answer is:
D
`16^(th)` group's elements are called chalcogens (oxygen family) while `Na` is a `1^(st)` group element which is called alkali metal.
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