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NEET2004ChemistryStructure of AtomActual

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

Options

  1. A3
  2. B7
  3. C5
  4. D9 .

Correct answer

B. 7

Step-by-step solution

: n=4 1 s^2 2 s^2 2 p^6 3 s^2 3 p^6 3 d¹⁰ 4 s^2 4 p^6 4 d¹⁰ 4 f¹⁴ l=3 only for f orbital. Thus the total number of orbitals for l=3 is equal to 7 (because f contains seven orbitals).

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