Questions
13
across 8 papers
Share of subject
3.4%
of 387 Physics Qs
Weightage rank
#14
of 30 chapters
Difficulty
9 easy · 4 medium · 0 hard
Nuclei contributed 13 of the 387 NEET Physics questions between 2020 and 2026 (Re-NEET 2026 included). That is 3.4% of the subject and makes it the #14 chapter out of 30 by weightage — roughly 1.6 questions per paper, peaking at 3 in NEET 2020.
Of the 13 questions tagged for difficulty, 69% were easy, 31% medium and 0% hard — a chapter where NCERT-level preparation pays off directly.
It has been asked less often lately: 1 question per paper across NEET 2025, NEET 2026 and Re-NEET 2026, against 2.7 in 2020–2022.
The single most-tested topic is Mass-Energy and Nuclear Binding Energy — 3 questions across 3 papers.
9 topics tagged under Nuclei. Numbers show how many questions each topic had in each paper; E / M / H are the easy, medium and hard counts.
| Topic | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Re | Total | E | M | H |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mass-Energy and Nuclear Binding Energy | 1 | 1 | – | – | – | – | 1 | – | 3 | 3 | – | – |
| Radioactivity (Half-Life and Mean-Life) | – | 1 | – | 1 | – | – | – | – | 2 | 1 | 1 | – |
| Size of the Nucleus (Nuclear Density) | – | – | 1 | – | – | – | 1 | – | 2 | 1 | 1 | – |
| Atomic Masses and Composition of Nucleus (Composition of Nucleus: Nuclei are Composed of Prot…) | – | – | 1 | – | – | – | – | – | 1 | 1 | – | – |
| Atomic Masses and Composition of Nucleus (Electron Volt (eV)) | 1 | – | – | – | – | – | – | – | 1 | 1 | – | – |
| Nuclear Energy (Chain Reaction) | – | – | – | – | 1 | – | – | – | 1 | 1 | – | – |
| Nuclear Energy (Fission) | 1 | – | – | – | – | – | – | – | 1 | – | 1 | – |
| Radioactivity (Alpha Decay and Beta Decay) | – | 1 | – | – | – | – | – | – | 1 | 1 | – | – |
| Radioactivity (Q-Value in Radioactive Decays) | – | – | – | – | – | – | – | 1 | 1 | – | 1 | – |
No question in this chapter was tagged hard.
In the NEET papers from 2020 to 2026 (including Re-NEET 2026), 13 Physics questions came from Nuclei — 3.4% of the subject, or about 1.6 per paper.
By past weightage it ranks #14 of 30 Physics chapters, so it is an above-average-weightage Physics chapter, with 13 questions over 2020–2026.
The most-tested topics are Mass-Energy and Nuclear Binding Energy (3), Radioactivity (Half-Life and Mean-Life) (2) and Size of the Nucleus (Nuclear Density) (2). The topic table above lists every topic with its count in each paper.
Of the 13 difficulty-tagged questions, 69% were easy, 31% medium and 0% hard.
Mass-Energy and Nuclear Binding Energy, Size of the Nucleus (Nuclear Density) and Radioactivity (Q-Value in Radioactive Decays) were asked in the 2026 papers.
Edurack has chapter-wise NEET previous-year questions for Nuclei. Use the practice button on this page to open the set, attempt questions and check your answers.
Counts come from Edurack's tagged set of NEET papers 2020–2026 (including Re-NEET 2026), mapped to NCERT chapters and topics. Use them as a trend guide — past frequency doesn't guarantee what a future paper will ask.