Atomic structure is one of the most fundamental topic in chemistry and physics. It teaches you about energy, quantum & basic structure of any element.
If you are in class 8,9,10th CBSE in Pune, then you already might have got an introduction to this topic of Atomic structure.
If you are preparing for preparing for competitive exams like JEE Mains in 2025, then its important to focus on this topic very well.
In this blog on Atomic Structure JEE Mains Questions, our team at Scholars Hub Academy – Best JEE Classes in Pune, have created 20 easy-level atomic structure JEE Mains questions.
Our questions will cover key subtopics such as Bohr’s model, quantum numbers, spectral series. Each of this atomic structure question is also having a solution or answer key.
So, you can verify your answers right here. So, let’s get started with our 10+ Atomic Structure JEE Mains Questions in 2025.
Atomic Structure JEE Mains Questions with Answers
Q: What is the radius of the third orbit of a hydrogen atom? (Given : rn = 0.529A˚⋅n2)
A: r3=0.529⋅32=4.761A˚
Q: Calculate the energy of an electron in the second orbit of a hydrogen atom.
A: E2 = −3.4eV
Q: The Lyman series of the hydrogen spectrum lies in which region of the electromagnetic spectrum
(a) Ultraviolet
(b) Visible
(c) Infrared
(d) Microwave
A: (a) Ultraviolet
Q: What is the ionization energy of hydrogen in the ground state?
A: 13.6eV
Q: The d-orbitals can have how many orientations in space?
(a) 3
(b) 5
(c) 7
(d) 9
A: (b) 5
Q: The transition of an electron from n=5 to in a hydrogen atom belongs to which series?
(a) Lyman
(b) Balmer
(c) Paschen
(d) Brackett
A: (d) Brackett
Q: Which orbital will be filled after 4s?
A: 3d
Q: What is the region of the electromagnetic spectrum for the Balmer series?
A: Visible region
Q: What is the angle of deflection for most alpha particles in Rutherford’s experiment?
A: 0∘
Q: How many subshells are present in the n=4 shell?
A: 4 (s,p,d,f)
Conclusion on Atomic Structure JEE Mains Questions
Atomic structure is a important topic for competitive exams like JEE Mains. We hope these Atomic structure JEE Mains questions will help you practice more for the main exam. All the best.