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Question

Which of the following statements 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 forms negative ion
Solution
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Correct option is D. Its atom forms negative ion
The element having electronic configuration as $$2,8,8,2$$ has valency of $$2$$. It has tendency of losing two electrons and thus, it forms a positive ion.

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