Question

the electronic configuration of the elements X Y and Z are given below a)x=2 b)y=2,6 c)z=2,8,2.
i) which element belongs to second period?
ii) which element belongs to second group ?
iii) which element belongs to 18th group ?

Answer 1

1- element y belongs to second period
2-element z belongs to 2 nd group
3element x belongs to 18 th group


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Answer 2

Answer:

I) y

II) z

III) x

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