Which of the following options have elements / ions with same value of spin multiplicity.

Engineering

Chemistry

Electronic Configuration

Question

F, Sc, K, Rb

Ni⁺² , Ti, C

Cr, Mn⁺¹

N, P, V

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

Spin multiplicity is given by 2S+1, where S is total spin quantum number. To have same multiplicity, total unpaired electrons must be equal.

For Cr (atomic number 24): [Ar]4s¹3d⁵ → 6 unpaired electrons → S=3 → multiplicity=7

For Mn⁺¹ (atomic number 25): [Ar]3d⁶ → 4 unpaired electrons → S=2 → multiplicity=5

These values differ (7 vs 5), so they do NOT have same spin multiplicity.

Final Answer: None of the given pairs have the same spin multiplicity.