Chemistry · Structure of Atom

JEE Main 2026 — 5 April, Morning Shift — Question 50

Arrange the following atomic orbitals of multi electron atoms in order of increasing energy. (A) n=3,ℓ=2, m=+1\mathrm{n}=3, \ell=2, \mathrm{~m}=+1 (B) n=4,ℓ=0,m=0n=4, \ell=0, m=0 (C) n=6,ℓ=1, m=0\mathrm{n}=6, \ell=1, \mathrm{~m}=0 (D) n=5,ℓ=1, m=+1\mathrm{n}=5, \ell=1, \mathrm{~m}=+1 (E) n=2,ℓ=1, m=+1\mathrm{n}=2, \ell=1, \mathrm{~m}=+1

Choose the correct answer from the options given below :

  1. Option A:

    C << D << B << A << E

  2. Option B:

    B << A << E << C << D

  3. Option C:

    E << C << D << B << A

  4. Option D:

    E << B << A << D << C

    Correct

Answer: D

Step-by-step solution

(A) n=3, l=2, m=+1;(n+l)=5\mathrm{n}=3,\ \mathrm{l}=2,\ \mathrm{m}=+1;\quad (\mathrm{n}+\mathrm{l})=5

(B) n=4, l=0, m=0;(n+l)=4\mathrm{n}=4,\ \mathrm{l}=0,\ \mathrm{m}=0;\quad (\mathrm{n}+\mathrm{l})=4

(C) n=6, l=1, m=0;(n+l)=7\mathrm{n}=6,\ \mathrm{l}=1,\ \mathrm{m}=0;\quad (\mathrm{n}+\mathrm{l})=7

(D) n=5, l=1, m=+1;(n+l)=6\mathrm{n}=5,\ \mathrm{l}=1,\ \mathrm{m}=+1;\quad (\mathrm{n}+\mathrm{l})=6

(E) n=2, l=1, m=+1;(n+l)=3\mathrm{n}=2,\ \mathrm{l}=1,\ \mathrm{m}=+1;\quad (\mathrm{n}+\mathrm{l})=3

More the value of (n+l)(\mathrm{n}+\mathrm{l}), more will be the energy of that particular orbital.

Ans. E<B<A<D<C\mathrm{E}<\mathrm{B}<\mathrm{A}<\mathrm{D}<\mathrm{C}

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Subject
Chemistry
Chapter
Structure of Atom
Topic
Quantum Numbers and Sommerfeld
Arrange the following atomic orbitals of multi electron atoms in… | JEE Main 2026 PYQ with Solution · DhiX AI