Structure of Atom in NSEC: previous year question analysis
Structure of Atom has appeared 51 times in NSEC between 2007 and 2025, making it the 13th most-asked of 29 chapters and about 3.8% of the bank. Over the last 5 years it has averaged 2.6 questions per year.
Total PYQs
51
Years covered
2007–2025
Weightage rank
#13 of 29
Share of bank
3.8%
How many Structure of Atom questions appeared each year
| Year | Questions | Relative volume |
|---|---|---|
| 2012 | 2 | |
| 2013 | 3 | |
| 2014 | 3 | |
| 2015 | 5 | |
| 2016 | 6 | |
| 2017 | 2 | |
| 2018 | 4 | |
| 2019 | 5 | |
| 2022 | 1 | |
| 2023 | 5 | |
| 2024 | 1 | |
| 2025 | 1 |
Which Structure of Atom sub-topics are asked most
Every question in this chapter is tagged to a sub-topic, so you can see exactly where the marks sit before you revise.
- Quantum numbers3 questions
- Photoelectric effect2 questions
- de Broglie wavelength / kinetic energy2 questions
- Photoelectric effect / work function2 questions
- Bohr model radius1 questions
- Atomic spectra1 questions
- Orbitals and electron capacity1 questions
- Electronic configuration / valence electrons1 questions
- Isotones / neutron number1 questions
- (n+l) rule for orbital energy1 questions
Question formats used in Structure of Atom
- Single-correct MCQ50
- Multiple-correct MCQ1
How Structure of Atom compares with nearby chapters
- #11Chemical Kinetics55
- #12Thermodynamics54
- #13Structure of Atom51
- #14Haloalkanes & Haloarenes46
- #15Alcohols, Phenols & Ethers40
Counts are computed from AcadXL’s own NSEC question bank, tagged chapter- and sub-topic-wise and checked against official answer keys. Sign in to attempt the 51 Structure of Atom questions with solutions.