An element belongs to period 2 and group 2 th number of valence electrons in the atoms of this element is

An element belongs to period 2 and group 2 th number of valence electrons in the atoms of this element is

Q. An element belongs to period 2 and group 2 th number of valence electrons in the atoms of this element is.

A.            2      

B.            4       

C.            3      

D.            1

Answer: 2

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