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Question

Total number of orbitals associated with third shell will be ____.

A
2
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B
4
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C
9
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D
3
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Solution

The correct option is D 9
Total number of orbitals in nth shell=n2

where n=shell/principal quantum number

Total number of orbitals in third shell= 32=9

So, these orbitals are one 3s-orbital, three 3p-orbitals and five 3d-orbitals.

Thus, the correct option is C

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