Chemistry Atomic Structure PMC 2021
PMDC Verified Question 68 of 95
Total no. of electrons that can be accommodated in f-subshell:
A
\( 6 \)
B
\( 14 \)
C
\( 10 \)
D
2(2l+1)
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: \( 14 \)
Concept: The maximum number of electrons in any subshell is derived from its azimuthal quantum number \(l\).

Formula: $$ \text{Max Electrons} = 2(2l + 1) $$

Solution:
  • For an f-subshell, the azimuthal quantum number is \( l = 3 \).
  • Number of degenerate orbitals = \( 2l + 1 = 2(3) + 1 = 7 \) orbitals.
  • Following Pauli's Exclusion Principle, each orbital holds up to 2 electrons.
  • Total electrons = \( 7 \times 2 = 14 \).


Why other options are incorrect: 6 is for a p-subshell. 10 is for a d-subshell.

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