Which of the following is not a chalcogen?

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Question

(D) The $16^{th}$ group elements are known as chalcogens (oxygen family).$O$,$S$,and $Se$ belong to the $16^{th}$ group.$Na$ belongs to the $1^{st}$ g

Vedclass · Accepted Answer

$Na$

Vedclass · Answer

(D) The $16^{th}$ group elements are known as chalcogens (oxygen family).$O$,$S$,and $Se$ belong to the $16^{th}$ group.$Na$ belongs to the $1^{st}$ group and is known as an alkali metal.Therefore,$Na$ is not a chalcogen.

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