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Saturday, 31 October

JEE Main · Chemistry · Classification of Elements and Periodicity in Properties

IUPAC Nomenclature for Z > 100

JEE Main asked IUPAC Nomenclature for Z > 100 4 times in 4 of the 108 shifts Lumi analysed, in 2020, 2022 and 2024. It belongs to Periodic Trends, in Classification of Elements and Periodicity in Properties (Chemistry). The longest wait between two years asking it was 2 years. In 2020 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
4
in 4 shifts
Years
3 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, 2022 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.10.20’170.17’200’210.03’220’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 2 in 12 shifts · 2021: 0 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 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
  • 20241 of 18
  • 20230 of 12
  • 20221 of 24
  • 20210 of 24
  • 20202 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.

  • Iupac name of element from configuration
  • Atomic number from iupac temporary name

Difficulty

Easy 3Medium 1Hard 0

2 of the 4 questions had a numerical answer.

Every question

All 4 questions

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

  1. 30 Jan 2024, Shift 1 · Q88If IUPAC name of an element is "Unununnium" then the element belongs to nth^{th} group of Periodic table. The value of n is ________.EasyNumerical value
  2. 25 Jul 2022, Shift 1 · Q66The IUPAC nomenclature of an element with electronic configuration [Rn] 5f146d17s2[\mathrm{Rn}]\,5f^{14}6d^{1}7s^{2} is :MediumSingle correct
  3. 6 Sep 2020, Shift 2 · Q46The atomic number of Unnilunium is ________.EasyNumerical value
  4. 3 Sep 2020, Shift 1 · Q32The atomic number of the element unnilennium is :EasySingle correct

Shifts: 3 Sep 2020, Shift 1, 6 Sep 2020, Shift 2, 25 Jul 2022, Shift 1, 30 Jan 2024, Shift 1.

Same topic

Other ideas in Periodic Trends

Periodic Trends has 25 ideas JEE Main has asked; 17 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas