# Atomic Structure JEE Main PYQ Chapter Wise (2016–2026)

> Atomic Structure JEE Main PYQs: all 14 questions from 11 official papers (2016–2026), by concept with official answers. Asked in 3 of 3 years.

Source: https://previousyearquestions.app/jee-main/chapters/atomic-structure/

Explore: <a href="/jee-main/chapters/">All JEE Main chapters</a> · <a href="/jee-main/chapters/chemistry/">JEE Main Chemistry PYQs</a> · <a href="/jee-main/">JEE Main hub</a> · <a href="/jee-main/2026/">JEE Main 2026</a> · <a href="/jee-main/syllabus-pattern/">Syllabus & pattern</a>

## Answer first

Atomic Structure PYQs (previous year questions) for JEE Main: Atomic Structure (Chemistry) had **14 questions** across the 11 official JEE Main papers we tagged (2016–2026), and appeared in 11 of them. Asked in 3 of 3 years. The concepts asked in the most papers: Bohr Model, Hydrogen Spectrum, Hydrogen-like Species.

## Year-wise question count

<ChapterQuestions exam="jee-main" chapter="atomic-structure" part="trend" />

## Most-asked concepts

Sorted by the number of papers a concept appeared in.

<ChapterQuestions exam="jee-main" chapter="atomic-structure" part="concepts" />

## How to practise Atomic Structure PYQs

1. Start with the concepts at the top of the table. They have come back the most.
2. Solve one year's Atomic Structure questions from the official PDF against the clock, then check the answer listed below.
3. Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
4. 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.

<ChapterQuestions exam="jee-main" chapter="atomic-structure" part="questions" />

## Atomic Structure in other exams

The same chapter in other official papers we tagged: [JEE Advanced](/jee-advanced/chapters/atomic-structure/) (15 questions), [NEET](/neet/chapters/#atomic-structure) (1 question).

## Other Chemistry chapters

- [Some Basic Concepts in Chemistry PYQs](/jee-main/chapters/basic-concepts-chemistry/)
- [Chemical Bonding and Molecular Structure PYQs](/jee-main/chapters/chemical-bonding/)
- [Chemical Thermodynamics PYQs](/jee-main/chapters/chemical-thermodynamics/)
- [Solutions PYQs](/jee-main/chapters/solutions/)
- [Equilibrium PYQs](/jee-main/chapters/equilibrium/)
- [Redox Reactions and Electrochemistry PYQs](/jee-main/chapters/redox-electrochemistry/)
- [Chemical Kinetics PYQs](/jee-main/chapters/chemical-kinetics/)
- [Classification of Elements and Periodicity PYQs](/jee-main/chapters/periodicity/)
- [p-Block Elements PYQs](/jee-main/chapters/p-block/)
- [d- and f-Block Elements PYQs](/jee-main/chapters/d-f-block/)
- [Coordination Compounds PYQs](/jee-main/chapters/coordination-compounds/)
- [Purification and Characterisation of Organic Compounds PYQs](/jee-main/chapters/purification-characterisation-organic/)
- [Some Basic Principles of Organic Chemistry PYQs](/jee-main/chapters/basic-principles-organic/)
- [Hydrocarbons PYQs](/jee-main/chapters/hydrocarbons/)
- [Organic Compounds Containing Halogens PYQs](/jee-main/chapters/organic-halogens/)
- [Organic Compounds Containing Oxygen PYQs](/jee-main/chapters/organic-oxygen/)
- [Organic Compounds Containing Nitrogen PYQs](/jee-main/chapters/organic-nitrogen/)
- [Biomolecules PYQs](/jee-main/chapters/biomolecules/)
- [Principles Related to Practical Chemistry PYQs](/jee-main/chapters/practical-chemistry/)

## FAQ

### How many Atomic Structure questions come in JEE Main?
In the official papers we tagged: 12 in 2026 (9 papers), 1 in 2017 (1 paper) and 1 in 2016 (1 paper). That is 14 questions in all, about 5% of Chemistry.

### Which Atomic Structure topics repeat in JEE Main?
Asked in the most papers: Bohr Model, Hydrogen Spectrum, Hydrogen-like Species. The concept table lists every one with its count.

### Are these official JEE Main questions?
Yes. Every question is from an official JEE Main paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.