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Saturday, 31 October

JEE Main · Chemistry · Structure of Atom

Magnetic Quantum Number

JEE Main asked Magnetic Quantum Number 7 times in 7 of the 108 shifts Lumi analysed, in 2020, 2021, 2022 and 2024. It belongs to Quantum Numbers, in Structure of Atom (Chemistry). The longest wait between two years asking it was 2 years. In 2021 and 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
7
in 7 shifts
Years
4 of 8
First asked
2020
last in 2024
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021, 2022 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.050.10’170.08’200.10’210.03’220’230.09’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 3 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 2 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20250 of 8
  • 20242 of 18
  • 20230 of 12
  • 20221 of 24
  • 20213 of 24
  • 20201 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: application.

  • Count orbitals from quantum numbers
  • Identify incorrect statement on atomic structure

Difficulty

Easy 3Medium 4Hard 0

5 of the 7 questions had a numerical answer.

Every question

All 7 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 5 Apr 2024, Shift 2 · Q81In an atom, total number of electrons having quantum numbers n=4n=4, ∣ml∣=1|m_l|=1 and ms=−12m_s=-\frac{1}{2} is ________.MediumNumerical value
  2. 4 Apr 2024, Shift 2 · Q81The maximum number of orbitals which can be identified with n = 4 and mlm_l = 0 is ________.EasyNumerical value
  3. 28 Jul 2022, Shift 1 · Q61Identify the incorrect statement from the following.MediumSingle correct
  4. 16 Mar 2021, Shift 2 · Q53The number of orbitals with n=5n=5, ml=+2m_l=+2 is ________. (Round off to the Nearest Integer).EasyNumerical value
  5. 31 Aug 2021, Shift 2 · Q53The value of magnetic quantum number of the outermost electron of Zn+\mathrm{Zn^+} ion is __________. (Integer answer)EasyNumerical value
  6. 31 Aug 2021, Shift 1 · Q52Ge (Z=32\mathrm{Z}=32) in its ground state electronic configuration has xx completely filled orbitals with ml=0\mathrm{m}_l=0. The value of…MediumNumerical value
  7. 2 Sep 2020, Shift 2 · Q30The number of subshells associated with n=4n=4 and m=−2m=-2 quantum numbers is :MediumSingle correct

Shifts: 2 Sep 2020, Shift 2, 16 Mar 2021, Shift 2, 31 Aug 2021, Shift 2, 31 Aug 2021, Shift 1, 28 Jul 2022, Shift 1, 4 Apr 2024, Shift 2, 5 Apr 2024, Shift 2.

Same topic

Other ideas in Quantum Numbers

Quantum Numbers has 23 ideas JEE Main has asked; 9 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas