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Question


The pair of elements having same number of valence electrons are _________.


A
Zn,Mg
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B
Cl,I
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C
Na,Ca
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D
C,Ge
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Solution

The correct options are
A Zn,Mg
B C,Ge
C Cl,I
(A) Zn - 2, 8, 18, 2
Mg - 2, 8, 2
(B) Cl - 2, 8, 7
I - 2, 8, 18, 18, 7
(C) Na - 2, 8, 1
Ca - 2, 8, 8, 2
(D) C - 2, 4
Ge - 2, 8, 18, 4
In the above choices A, B, D pair of the element have the same number of valence electrons.

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