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Question

For principal quantum number n=4, the total number of orbitals having l=3 is:

A
3
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B
7
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C
5
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D
9
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Solution

The correct option is B 7
For n=4 and l=3, the orbital is 4f.

Number of values of m= no. of orbitals=(2l+1)=7.

Hence, the correct option is B

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