JEE Main Classification of Elements and Periodicity weightage 2022–2026
Chemistry
Classification of Elements and Periodicity contributed 82 of the 2,932 JEE Main Chemistry questions asked across all shifts between 2022 and 2026 — 2.8% of the subject. In 2024–2026 its share was 3.8%, which makes it the #16 chapter of 20 in the current syllabus by recent weightage (about 1.3% of the whole paper).
Year by year it was asked 13 in 2022, 12 in 2023, 16 in 2024, 22 in 2025 and 19 in 2026. It appeared in 5 of 5 years, with its highest count in 2025.
Its share has been rising: 3.8% of the Chemistry paper on average in 2024–2026, against 2.3% in 2022–2023.
The most repeated concepts from this chapter in the dataset are Ionisation Enthalpy (17 questions).
Questions
82
2.8% of Chemistry
Share 2024–2026
3.8%
2022–2023: 2.3% avg
Rank in subject
#16
of 20 chapters
Years asked
5 of 5
Questions per year
Share of the Chemistry paper by year: 2022 2.2% · 2023 2.4% · 2024 3.7% · 2025 3.7% · 2026 4%
What the JEE Main syllabus covers
Modern periodic law, s-, p-, d- and f-block elements, periodic trends in radii, ionisation enthalpy, electron gain enthalpy, valence and oxidation states.
Most repeated concepts in Classification of Elements and Periodicity
| # | Concept | 2022 | 2023 | 2024 | 2025 | 2026 | Total |
|---|---|---|---|---|---|---|---|
| 1 | Ionisation EnthalpyClassification of Elements and Periodicity | 5 | 3 | 3 | – | 6 | 17 |
Frequently asked questions
How many questions come from Classification of Elements and Periodicity in JEE Main?
Classification of Elements and Periodicity had 82 questions across all JEE Main shifts from 2022 to 2026, which is 2.8% of Chemistry. Year by year: 13 in 2022, 12 in 2023, 16 in 2024, 22 in 2025 and 19 in 2026.
Is Classification of Elements and Periodicity important for JEE Main?
It ranks #16 of 20 Chemistry chapters by share of questions in 2024–2026 (3.8% of the subject). Its share has been rising.
Which Classification of Elements and Periodicity concepts are asked most in JEE Main?
Ionisation Enthalpy (17 questions) are the most repeated concepts from this chapter in the dataset.
What does the JEE Main syllabus cover in Classification of Elements and Periodicity?
Modern periodic law, s-, p-, d- and f-block elements, periodic trends in radii, ionisation enthalpy, electron gain enthalpy, valence and oxidation states.
Does a high weightage mean Classification of Elements and Periodicity will be asked again?
No. Weightage shows past frequency, not a promise. Use it to prioritise, and practise previous-year questions to see how the chapter is tested.
Practise JEE Main Chemistry PYQs
Solve JEE previous-year questions with solutions on Edurack.
More JEE Main guides
Counts are compiled from Edurack's JEE Main last five-year analysis (2022–2026) and count questions across all shifts and sessions of each year. Because the number of shifts changes every year, trends compare each chapter's share of the paper among chapters still in the syllabus, not raw counts. Past frequency is a trend guide, not a prediction. Chapters marked "not in syllabus" are absent from NTA's JEE Main 2026 syllabus; always check the latest NTA syllabus before skipping a chapter.