Science, asked by Vabhav1, 1 year ago

the atomic number of an element X is 20 first determine the position of the element X in the periodic table

Answers

Answered by Anonymous

6

Electronic configuration of X is 2,8,8,2.
The valency of X is 2 and it has 4 number of shells.
So X belongs to 4th period and 2nd group.

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