JEE Advanced Atomic Structure questions with solutions

Bohr model, quantum numbers, orbitals, de Broglie wavelength and photoelectric-type problems on atoms. 9 questions from our 2016–2023 JEE Advanced pattern papers, from the Class 11 Chemistry syllabus. Each has the answer and a full solution.

Also practise: Atomic Structure for JEE Main

JEE Advanced 2023

A He^+ ion (hydrogen-like, Z=2) makes a transition from the level n=4 to n=2 and the emitted photon falls on a metal surface of work function 4.2 eV.…JEE Advanced 2023 Paper 1 · medium
A photon emitted when the electron of a Li^2+ ion falls from the n=3 level to the n=2 level falls on a hydrogen atom in its ground state and ejects…JEE Advanced 2023 Paper 2 · hard

JEE Advanced 2022

Photons emitted when He^+ ions undergo the transition n=4→ n=2 fall on a metal surface whose work function is 2.0 eV. Use En=-13.6 Z^2/n^2 eV…JEE Advanced 2022 Paper 1 · medium
Match each orbital in List-I with the correct description of its nodes in List-II. 3p | 1. Total nodes 2, of which 1 is radial | | Q. 4d | 2. Total…JEE Advanced 2022 Paper 1 · easy
A He^+ ion (hydrogen-like, Z=2) in its n=4 state makes a transition directly to the n=2 state and emits one photon. This photon falls on a metal…JEE Advanced 2022 Paper 2 · medium

JEE Advanced 2021

A hydrogen-like ion X^Z-1)+ contains a single electron. Photons emitted when its electron falls from n=2 to n=1 strike isolated hydrogen atoms in…JEE Advanced 2021 Paper 1 · medium

JEE Advanced 2019

An electron in a He^+ ion makes a transition from n=4 to n=2, and the emitted photon falls on a metal surface of work function 4.0 eV. Use En=-13.6…JEE Advanced 2019 Paper 1 · medium

JEE Advanced 2016

A sample of ground-state Li^2+ ions absorbs photons of energy exactly 108.8 eV (use En=-13.6 Z^2/n^2 eV for hydrogen-like ions). Each excited ion…JEE Advanced 2016 Paper 1 · easy
For the hydrogen-like ion He^+ (Z=2), take the Bohr radius a0=52.9 pm, the hydrogen ground-state energy -13.6 eV and the Rydberg constant…JEE Advanced 2016 Paper 2 · medium

Other Chemistry topics

Alcohols, Phenols, Ethers and Haloalkanes 11 Biomolecules and Polymers 8 Carbonyl Compounds, Carboxylic Acids and Amines 20 Chemical Bonding and Molecular Structure 17 Chemical Equilibrium 12 Chemical Kinetics 24 Chemical Thermodynamics 21 Coordination Compounds 23 Electrochemistry 22 General Organic Chemistry and Isomerism 37 Hydrocarbons 12 Ionic Equilibrium 20 Mole Concept and Stoichiometry 6 Qualitative and Practical Chemistry 7 Redox Reactions and Titrations 15 Solutions, Solid State and Surface Chemistry 26 d- and f-Block Elements and Metallurgy 11 s-Block, p-Block Elements and Hydrogen 29