Which of the following statement is not correct for the element having electronic structure 2,8,8,2 ?
(A) Its valency is 2.
(B) It is in fourth period.
(C) It is in group II.
(D) Its atom froms negative ion.
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C is the wrong option
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Thr answer is d as calcium whose atomice no.is 20 whose formula is ca^2+
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