Pair of elements having same number of valence electrons is :

N, O

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Na, Ca

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As, Bi

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Pb, Sb

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Solution

The correct option is B As, Bi
As and Bi are in the same group of the periodic table. Therefore, they have same number of valence electrons.

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Similar questions

Identify the pair of elements from among the following which have the same number of valence electrons.

A

B

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