In a multielectron atom, which of the following orbitals described by three quantum numbers will have same energy in absence of electric and magnetic fields?
A. \(n=1,1=0,{m}_{1}=0\)
B. \(n=2,1=0,{m}_{1}=0\)
C. \(n=2,1=1,{m}_{1}=1\)
D. \(n=3,1=2,{m}_{1}=1\)
E. \(n=3,1=2,{m}_{1}=0\)

Choose the correct answer from the options given below:

[JEE Main 2025, 28 Jan (Shift 1)]

Question

In a multielectron atom, which of the following orbitals described by three quantum numbers will have same energy in absence of electric and magnetic fields?
A. \(n=1,1=0,{m}_{1}=0\)
B. \(n=2,1=0,{m}_{1}=0\)
C. \(n=2,1=1,{m}_{1}=1\)
D. \(n=3,1=2,{m}_{1}=1\)
E. \(n=3,1=2,{m}_{1}=0\)

Choose the correct answer from the options given below:

[JEE Main 2025, 28 Jan (Shift 1)]

YESPYQ · Accepted Answer

Correct answer: b) D and E Only. In a multi-electron atom, the orbitals (D) n = 3, l = 2, m = 1 and (E) n = 3, l = 2, m = 0 described by the three quantum numbers will have the same energy in the absence of magnetic and electric fields. D and E are 3d orbital.

In a multielectron atom, which of the following orbitals described by three quantum numbers will have same energy in abs…

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