Atomic Structure JEE Main Previous Year Questions with Solutions
Atomic Structure JEE Main Previous Year Questions
The JEE Main exam is one of the most competitive entrance tests in India, conducted by the NTA for admission to engineering courses in top institutes. The exam pattern includes multiple-choice and numerical-type questions from Physics, Chemistry, and Mathematics, with equal weightage to each subject. Every year, the paper tests both conceptual clarity and problem-solving speed.
Among Chemistry topics, Atomic Structure is considered very important because it forms the base for understanding advanced chapters like Chemical Bonding, Periodic Table, and Quantum Chemistry. Questions from this chapter usually test concepts like Bohr’s model, quantum numbers, electronic configuration, photoelectric effect, and de Broglie wavelength.
Going through the atomic structure JEE Mains previous year questions helps students understand how these concepts are applied in exams. Practising the structure of atom previous year questions JEE is a smart way to recognise question patterns, and avoid mistakes. Get the Atomic Structure JEE Main Previous Year Questions here.
Check Out: IIT JEE Books
Important Topics of Atomic Structure
Some of the key topics of Atomic Structure that you should focus on while preparing are:-
-
Basic Concepts: Learn the discovery of subatomic particles (electron, proton, neutron), Rutherford’s model, and Bohr’s model of the atom.
-
Quantum Numbers: Understand principal, azimuthal, magnetic, and spin quantum numbers, along with their rules and significance.
-
Electronic Configuration: Follow the Aufbau principle, Pauli’s exclusion principle, and Hund’s rule to write configurations correctly.
-
Photoelectric Effect: Focus on Einstein’s equation and the relation between frequency, energy, and work function.
-
de Broglie Wavelength & Dual Nature: Remember the formula for wavelength and its role in explaining the wave nature of particles.
-
Heisenberg’s Uncertainty Principle: Know its meaning and how it sets limits on measuring momentum and position.
Check Out: JEE Previous Year Papers
Atomic Structure JEE Main PYQs
Here are some Atomic Structure JEE Main Previous Year Questions:-
1. Rutherford’s experiment, which established the nuclear model of the atom, used a beam of (IIT JEE 2002)
(a) β-particles, which impinged on a metal foil and got absorbed
(b) γ-rays, which impinged on a metal foil and got scattered
(c) helium atoms, which impinged on a metal foil and got scattered
(d) helium nuclei, which impinged on a metal foil and got scattered
2. Rutherford's alpha particle scattering experiment eventually led to the conclusion that (IIT JEE 1986)
(a) mass and energy are related
(b) electrons occupy space around the nucleus
(c) neutrons are buried deep in the nucleus
(d) the point of impact with matter can be precisely determined
3. The radius of an atomic nucleus is of the order of (IIT JEE 1985)
(a) 10–10 cm (b) 10–13 cm
(c) 10–15 cm (d) 10–18 cm
4. The increasing order (lowest first) for the values of e/m (charge/mass) for electron (e), proton (p), neutron (n) and alpha particle (α)
is (IIT JEE 1984)
(a) e, p, n, α (b) n, p, e, α
(c) n, p, α, e (d) n, α, p, e
To get more Atomic Structure JEE Main Previous Year Questions, continue reading.
JEE Mains Previous Year Questions of Atomic Structure
PW has brought the Atomic Structure JEE Mains Previous Year Questions to help students practice effectively and understand the exam pattern. This compilation covers all important topics, including subatomic particles, Dalton’s, Thomson’s, Rutherford’s, and Bohr’s models, quantum numbers, and electronic configuration.
Students can get familiar with how questions are framed in the exam and the type of numerical and conceptual problems asked. By going through the structure of atom previous year questions JEE, students can understand the topic in a more better way. Get the structure of atom previous year questions PDF here:-
Structure of Atom Previous Year Questions PDF
Tip to Cover Atomic Structure
-
Understand subatomic particles: protons, neutrons, and electrons, their charges, and positions in the atom.
-
Study atomic models carefully: Dalton, Thomson, Rutherford, and Bohr. Focus on key ideas and diagrams.
-
Learn quantum numbers: principal (n), azimuthal (l), magnetic (m), and spin (s).
-
Practice electronic configuration: follow the Aufbau principle, Pauli exclusion principle, and Hund’s rule.
-
Solve Atomic Structure JEE Mains Previous Year Questions to get familiar with question types.
-
Use the structure of atom previous year questions JEE and structure of atom previous year questions PDF for topic-wise practice.
-
Regularly attempt JEE Mains previous year questions of atomic structure and other atomic structure questions for JEE Mains.
Check Out: JEE Revision Books
PW JEE Main Study Materials
Whether you are looking for JEE PYQs or JEE sample papers, PW has brought complete IIT JEE study materials for students who want to clear the JEE 2026 exam with their desired marks. These JEE books are designed in absolutely simple language, keeping in mind students from beginner to advanced level, so everyone can understand the concepts easily. The study materials include several questions to solve, along with PYQ sheets and previous year question papers.
By practising these PYQ questions, students can get familiar with the way questions are asked in the exam and understand the exam pattern better. With clear explanations and a variety of questions, PW JEE Main study materials will make preparation easy, structured, and effective for every student aiming to score high.
|
JEE Study Materials |
Atomic Structure JEE Main Previous Year Questions FAQs
1. What are subatomic particles?
Subatomic particles are protons, neutrons, and electrons that make up an atom.
2. What is the difference between atomic number and mass number?
Atomic number = number of protons; Mass number = protons + neutrons.
3. Which atomic models are important for JEE Main?
Dalton, Thomson, Rutherford, and Bohr models are essential.
4. What are quantum numbers?
Quantum numbers describe the position, energy, and spin of electrons in an atom.
5. What is electronic configuration?
It shows how electrons are arranged in an atom’s shells and orbitals.
