JEE Main Chemistry · Structure of Atom
Aufbau Principle and n+l Rule
Aufbau Principle and n+l Rule (Structure of Atom) was asked 4 times in 4 JEE Main shifts, 2024–2026, out of the 42 shifts Lumi analysed.
- Times asked
- 4
- in 4 shifts
- Years
- 2024–2026
- Usual format
- Other
- Application
- Pattern
- New since 2024
- repeats across shifts
How it is asked
- Order/ranking of orbital energies
- Quantum numbers of a given electron
Difficulty
Easy 1Medium 3Hard 0
Where it sits
Chapter: Structure of Atom. Topic: Quantum Numbers, 23 questions over 13 ideas.
Other repeat ideas in this topic
Every time it came
All 4 questions
Newest first, each with its options and official answer.
- 4 Apr 2026, Shift 1 · Q53Which of the following is correct set of quantum numbers of electron in Chromium (Atomic number ) in accordance…MediumSingle correct
- 5 Apr 2026, Shift 1 · Q52Arrange the following atomic orbitals of multi electron atoms in order of increasing energy. A. B.…MediumOther
- 5 Apr 2026, Shift 2 · Q52Which of the following statement(s) is/are true ? A. If two orbitals have the same value of , the orbital with lower value of n…MediumOther
- 9 Apr 2024, Shift 1 · Q61Compare the energies of following sets of quantum numbers for multielectron system. (A) (B) (C) (D)…EasySingle correct