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AIIMS 2004
Exam
AIIMS
Year
2004
Subject
Chemistry
Chapter
Structure of Atom

AIIMS 2004 · Chemistry · Structure of Atom

For principle quantum number n=4 , the total number of orbitals...

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

Options

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

Correct answer

B. 7

Step-by-step solution

:n=4: n=4 1 s² 2 s² 2 p⁶ 3 s² 3 p⁶ 3 d^{10} 4 s² 4 p⁶ 4 d^{10} 4 f^{14} l=3l=3 only for ff orbital. Thus the total number of orbitals for l=3l=3 is equal to 7 (because ff contains seven orbitals).
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