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The electronic configuration of an element X is 1s2

The electronic configuration of an element X is 1s22s 22s63p 2 3p4. It can be deduced that X

A.

Belongs to group 6 of the Periodic Table

B.

Belongs to group IV of the Periodic Table

C.

has 3 unpaired electrons in its atom

D.

has relative molecular mass of 16

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Correct answer is A

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