NEET Chemistry Classification of Elements and Periodicity in Properties PYQ Analysis 2020–2026: Topic-wise Trends & Practice
Classification of Elements and Periodicity in Properties (NEET Chemistry): 11 questions in 2020–2026, 2.8% of the subject. Topic-wise trends, difficulty split, repeated topics and PYQ practice.
Edurack Team
October 13, 2026
Classification of Elements and Periodicity in Properties gave 11 of the 398 NEET Chemistry questions asked between 2020 and 2026 (Re-NEET 2026 included). That is 2.8% of the subject and the #18 chapter out of 31 by weightage, about 1.4 questions per paper. It peaked at 2 in NEET 2024.
Of the 11 questions tagged for difficulty, 36% were easy, 37% medium and 27% hard, so this is a chapter that tends to bring the tougher questions.
It has been asked more often lately: 2 questions per paper across 2025, 2026 and Re-NEET 2026, against 0.7 per paper in 2020–2022.
Year-wise questions from Classification of Elements and Periodicity in Properties
| Paper | Questions |
|---|---|
| NEET 2020 | 1 |
| NEET 2021 | 0 |
| NEET 2022 | 1 |
| NEET 2023 | 1 |
| NEET 2024 | 2 |
| NEET 2025 | 2 |
| NEET 2026 | 2 |
| Re-NEET 2026 | 2 |
Difficulty split
| Level | Questions | Share |
|---|---|---|
| Easy | 4 | 36% |
| Medium | 4 | 37% |
| Hard | 3 | 27% |
Topic-wise analysis
Every topic tagged under Classification of Elements and Periodicity in Properties, most-asked first. "Papers" is the number of the 8 papers in which the topic appeared.
| Topic | Total Qs | Easy | Medium | Hard | Papers | Asked in |
|---|---|---|---|---|---|---|
| Nomenclature of Elements With Atomic Number > 100 | 3 | 1 | 0 | 2 | 3 | 2020, 2022 and 2026 |
| Periodic Properties (Ionization Energy (Enthalpy)) | 3 | 1 | 1 | 1 | 3 | 2024, 2025 and Re-NEET 2026 |
| Classification of Elements as Metals, Non-Metals and Metalloids | 1 | 1 | 0 | 0 | 1 | 2026 |
| Effective Nuclear Charge | 1 | 1 | 0 | 0 | 1 | 2023 |
| Electronic Configuration of Elements and The Periodic Table (Groupwise Electronic Configuration) | 1 | 0 | 1 | 0 | 1 | 2025 |
| Periodic Properties (Electron Affinity) | 1 | 0 | 1 | 0 | 1 | Re-NEET 2026 |
| Periodic Properties (Electronegativity) | 1 | 0 | 1 | 0 | 1 | 2024 |
Which topics matter most
Most-tested topics
- Nomenclature of Elements With Atomic Number > 100: 3 Qs
- Periodic Properties (Ionization Energy (Enthalpy)): 3 Qs
- Classification of Elements as Metals, Non-Metals and Metalloids: 1 Q
- Effective Nuclear Charge: 1 Q
- Electronic Configuration of Elements and The Periodic Table (Groupwise Electronic Configuration): 1 Q
Topics that keep coming back
These appeared in three or more different papers:
- Nomenclature of Elements With Atomic Number > 100: 3 papers (2020, 2022 and 2026)
- Periodic Properties (Ionization Energy (Enthalpy)): 3 papers (2024, 2025 and Re-NEET 2026)
What the latest papers asked
Topics from NEET 2026 and Re-NEET 2026:
- Nomenclature of Elements With Atomic Number > 100
- Periodic Properties (Ionization Energy (Enthalpy))
- Classification of Elements as Metals, Non-Metals and Metalloids
- Periodic Properties (Electron Affinity)
Where the hard questions came from
- Nomenclature of Elements With Atomic Number > 100: 2 hard of 3
- Periodic Properties (Ionization Energy (Enthalpy)): 1 hard of 3
How to use this data
- Start with the 2 recurring topics above. They account for 6 of the chapter's 11 questions (55%).
- 27% were hard. After the basics, practise multi-step and application questions from the hard-tagged topics.
- Re-solve the 4 topics from NEET 2026 and Re-NEET 2026, since they show the current style of questions.
- Then attempt the chapter's past questions under a timer and note which topics cost you marks.
Practise Classification of Elements and Periodicity in Properties PYQs
Solve every Classification of Elements and Periodicity in Properties question from 2020–2026 with solutions on Edurack:
- Practise Classification of Elements and Periodicity in Properties PYQs
- See the full Classification of Elements and Periodicity in Properties blueprint page
- NEET Chemistry PYQ analysis: all chapters
Related chapters
- Alcohols, Phenols and Ethers: #17 in Chemistry, 11 questions
- Haloalkanes and Haloarenes: #19 in Chemistry, 11 questions
Frequently Asked Questions
How many questions came from Classification of Elements and Periodicity in Properties in NEET 2020–2026?
Classification of Elements and Periodicity in Properties contributed 11 NEET Chemistry questions across the 8 papers from 2020–2026, which is 2.8% of the subject.
Which topics of Classification of Elements and Periodicity in Properties are asked most often?
The most-tested topics are Nomenclature of Elements With Atomic Number > 100: 3 Qs, Periodic Properties (Ionization Energy (Enthalpy)): 3 Qs and Classification of Elements as Metals, Non-Metals and Metalloids: 1 Q.
Is Classification of Elements and Periodicity in Properties easy or difficult in NEET?
Of 11 difficulty-tagged questions, 36% were easy, 37% medium and 27% hard.
Was Classification of Elements and Periodicity in Properties asked in NEET 2026?
Yes. It had 2 questions in NEET 2026 and 2 questions in Re-NEET 2026.