Number of electrons present in the species H 2 , He, H 2 and O 2 respectively are:

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General Awareness

Number of electrons present in the species H₂, He, H₂ and O₂ respectively are:

This question was previously asked in

CDS 2 2025 Maths Question Paper (14-Sep-2025)

1, 2, 2, 15

1, 2, 1, 14

2, 2, 2, 16

0, 2, 1, 14

The correct answer is

1, 2, 2, 15

The number of electrons in H₂ (1 electron per H atom, so 2 electrons), He (2 electrons), H₂ (1 electron per H atom, so 2 electrons), and O₂ (16 electrons) are correct as per option (a).

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