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Answer first
Atomic Structure PYQs (previous year questions) for JEE Advanced: Atomic Structure (Chemistry) had 15 questions across the 22 official JEE Advanced papers we tagged (2016–2026), and appeared in 10 of them. Asked in 7 of 11 years. The concepts asked in the most papers: Bohr Model, Wave Functions, Orbital Energies.
Year-wise question count
Asked in 7 of 11 years, with 2 papers each year.
| Year | Questions |
|---|---|
| JEE Advanced 2026 | 2 |
| JEE Advanced 2025 | Not asked |
| JEE Advanced 2024 | 2 |
| JEE Advanced 2023 | 1 |
| JEE Advanced 2022 | Not asked |
| JEE Advanced 2021 | 1 |
| JEE Advanced 2020 | Not asked |
| JEE Advanced 2019 | 4 |
| JEE Advanced 2018 | Not asked |
| JEE Advanced 2017 | 3 |
| JEE Advanced 2016 | 2 |
Most-asked concepts
Sorted by the number of papers a concept appeared in.
| Concept | Questions | Papers | Years |
|---|---|---|---|
| Bohr Model | 4 | 3 | 2024, 2023, 2019 |
| Wave Functions | 3 | 1 | 2017 |
| Hydrogen-like Spectra | 1 | 1 | 2026 |
| Nuclear Stability | 1 | 1 | 2016 |
| Orbital Energies | 1 | 1 | 2026 |
| Photon Momentum | 1 | 1 | 2021 |
| Quantum Mechanical Model | 1 | 1 | 2024 |
| Quantum Numbers | 1 | 1 | 2019 |
| Radial Probability | 1 | 1 | 2016 |
| Radioactive Decay | 1 | 1 | 2019 |
How to practise Atomic Structure PYQs
- Start with the concepts at the top of the table. They have come back the most.
- Solve one year’s Atomic Structure questions from the official PDF against the clock, then check the answer listed below.
- Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
- Once a concept is clean in two papers, move to the next. Then sit a full paper from the year pages.
Questions by year
Each line gives the question number and paper, type, concept, our one-line summary and the official answer, with a link to the official PDF.
JEE Advanced2026
JEE Advanced2024
JEE Advanced2023
- Q.11 (Paper 2) · Integer · Bohr Model: Wavelength of photon for a He+ orbit transition (official answer: 30) PDF
JEE Advanced2021
- Q.18 (Paper 2) · Integer · Photon Momentum: Velocity change of a helium atom absorbing a photon PDF
JEE Advanced2019
- Q.10 (Paper 1) · MSQ · Radioactive Decay: Particles emitted in a U-238 decay chain and their nature (official answer: A, B, D) PDF
- Q.4 (Paper 2) · MSQ · Quantum Numbers: Nodes and identity of a He+ state of given energy and l (official answer: A, B) PDF
- Q.15 (Paper 2) · Matching · Bohr Model: Matching n-dependence of Bohr orbit quantities (official answer: B) PDF
- Q.16 (Paper 2) · Matching · Bohr Model: Second combination of Bohr orbit quantity and n-dependence (official answer: A) PDF
JEE Advanced2017
- Q.31 (Paper 1) · Matching · Wave Functions: Matching orbital, wave function and property for hydrogen-like species (official answer: C) PDF
- Q.32 (Paper 1) · Matching · Wave Functions: Correct orbital-property combination for the hydrogen atom (official answer: A) PDF
- Q.33 (Paper 1) · Matching · Wave Functions: Incorrect orbital-property combination for He+ (official answer: C) PDF
JEE Advanced2016
Atomic Structure in other exams
The same chapter in other official papers we tagged: JEE Main (14 questions), NEET (1 question).
Other Chemistry chapters
- Some Basic Concepts in Chemistry PYQs
- Chemical Bonding and Molecular Structure PYQs
- Chemical Thermodynamics PYQs
- Solutions PYQs
- Equilibrium PYQs
- Redox Reactions and Electrochemistry PYQs
- Chemical Kinetics PYQs
- Classification of Elements and Periodicity PYQs
- p-Block Elements PYQs
- d- and f-Block Elements PYQs
- Coordination Compounds PYQs
- Purification and Characterisation of Organic Compounds PYQs
- Some Basic Principles of Organic Chemistry PYQs
- Hydrocarbons PYQs
- Organic Compounds Containing Halogens PYQs
- Organic Compounds Containing Oxygen PYQs
- Organic Compounds Containing Nitrogen PYQs
- Biomolecules PYQs
- Principles Related to Practical Chemistry PYQs
FAQ
How many Atomic Structure questions come in JEE Advanced?
In the official papers we tagged: 2 in 2026, 2 in 2024, 1 in 2023, 1 in 2021, 4 in 2019, 3 in 2017 and 2 in 2016 (2 papers each year). Not asked in the other 4 years. That is 15 questions in all, about 4% of Chemistry.
Which Atomic Structure topics repeat in JEE Advanced?
Asked in the most papers: Bohr Model, Wave Functions, Orbital Energies. The concept table lists every one with its count.
Are these official JEE Advanced questions?
Yes. Every question is from an official JEE Advanced paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.