JEE Main · Chemistry · Classification of Elements and Periodicity in Properties
Aluminum vs Gallium Radius Anomaly
JEE Main asked Aluminum vs Gallium Radius Anomaly once in the 108 shifts Lumi analysed, on 2 Apr 2025, Shift 1. It belongs to Periodic Trends, in Classification of Elements and Periodicity in Properties (Chemistry).
Updated 2026-10-24
- Times asked
- 1
- in 1 shift
- Years
- 1 of 8
- First asked
- 2025
- the only year
- Pattern
- New since 2024
- asked once so far
Questions on this idea a shift, by year
2017–2026. Asked in 2025. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 1 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.
How JEE Main framed it
Two statements is the usual form. Skill tested: conceptual.
- Statement i/ii on atomic and ionic radii
Difficulty
The question was multiple choice.
Every question
The question
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
Shift: 2 Apr 2025, 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.
- Ionization Enthalpy Trends14× · 2026
- Acidic and Basic Character of Oxides12× · 2026
- Electron Gain Enthalpy10× · 2025
- Isoelectronic Species Radii Comparison10× · 2024
- p-Block Ionization Enthalpy Inversions8× · 2024
- Atomic and Ionic Radii Trends6× · 2025
- Successive Ionization Enthalpy Jumps5× · 2026
- Electronegativity Scales4× · 2026
- IUPAC Nomenclature for Z > 1004× · 2024
- Metallic and Non-Metallic Character Trends4× · 2023
- Anomalous Behavior of Second Period Elements2× · 2026
- Van der Waals vs Covalent vs Metallic Radii2× · 2026