NEET-UG and JEE Main Chemistry · Class 11
Atomic Structure — NEET-UG and JEE Main Questions and Mock Test
Atomic Structure is a Class 11 Chemistry chapter of the NEET-UG and JEE Main syllabus, covering 8 topics. StudyBuddy holds 174 published questions from Atomic Structure, spread across 7 of those topics, each marked exactly as the real paper marks it.
- questions
- 174
- topics
- 8
- ncert class
- 11
No signup for the first test. The length follows what the chapter holds.
Topics in Atomic Structure
Every topic of Atomic Structure, ordered by how many published questions sit behind it. A topic with none is listed rather than hidden — it is part of the chapter either way.
- Quantum mechanical model; orbitals, quantum numbers and orbital shapes
- Bohr model - postulates, electron energy and limitations
- Electromagnetic radiation and the photoelectric effect
- Spectrum of the hydrogen atom
- Electronic configuration; stability of half-filled and filled orbitals
- Dual nature of matter; de Broglie relation; uncertainty principle
- Sub-atomic particles; Thomson and Rutherford models
- Aufbau principle, Pauli exclusion principle and Hund's rule
Atomic Structure weightage in NEET-UG 2026 and JEE Main 2026
These shares are measured across many years of past papers, so they describe the long run rather than predicting any single paper.
| Paper | Share of Chemistry | Typical questions | Typical marks |
|---|---|---|---|
| NEET-UG 2026 chapter-wise weightage | 4.8% | 2.1 | 8.6 |
| JEE Main 2026 chapter-wise weightage | 4.8% | 1.2 | 4.8 |
Previous year questions from Atomic Structure
Past-paper questions are the most trustworthy material in the bank, and assembly reaches for them first when it builds a Atomic Structure test. They are not listed separately here, because a question's value is that you meet it under a clock rather than that you read it in a list.
A Atomic Structure test draws from all 174 published questions in this chapter, past papers first. Sit one now and see the per-topic breakdown.
More Chemistry chapters
Other chapters of the NEET-UG and JEE Main Chemistry syllabus, with the practice behind each.