Total number of orbitals associated with third shell will be _____.
1. 2
2. 4
3. 9
4. 3
Hint: Azimuthal quantum number
Azimuthal quantum number. ‘l’ is also known as orbital angular momentum or subsidiary quantum number. It defines the three-dimensional shape of the orbital. For a given value of n, l can have n values ranging from 0 to n – 1, that is, for a given value of n, the possible value of l are : l = 0, 1, 2, ..........(n–1).
For 3rd orbit, n=3
Number of subshell = n2 =32=9
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