Chemistry · JEE

Important Questions: Atomic Structure for JEE

138+ syllabus-aligned questions available

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The most important Atomic Structure questions for JEE cover conceptual traps, standard results, and numerical patterns from Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom, Bohr model of a hydrogen atom: its postulates, derivation of the relations for the energy of the electron and radii of the different orbits, limitations of Bohr's model, Dual nature of matter, de Broglie's relationship, Heisenberg uncertainty principle, Elementary ideas of quantum mechanics, the quantum mechanical model of the atom and its important features, and more. Goodmarks provides 130+ high-yield MCQs with full solutions.

Focus on what matters most. These important Atomic Structure questions cover high-weightage concepts from Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom, Bohr model of a hydrogen atom: its postulates, derivation of the relations for the energy of the electron and radii of the different orbits, limitations of Bohr's model, Dual nature of matter, de Broglie's relationship, Heisenberg uncertainty principle, Elementary ideas of quantum mechanics, the quantum mechanical model of the atom and its important features, and more — the topics JEE repeats every year.

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6+ important formulas for Atomic Structure

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Subtopics in Atomic Structure

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Q1ChemistryUnit 2: Atomic Structure

The energy of an electron in the ground state of

\boldsymbol{H}

atom is

-\mathbf{1 3 . 6 e V}

The negative sign indicates that:

Q2ChemistryUnit 2: Atomic Structure

Which of the following statements is incorrect?

Q3ChemistryUnit 2: Atomic Structure

Radiation of wavelength 242 nm is sufficient to ionize the sodium atom. Calculate the ionization energy in

\boldsymbol{k J} \boldsymbol{m o l}^{-1} \cdot\left(\boldsymbol{n}=\mathbf{6 . 6 2 5} \times \mathbf{1 0}^{-\mathbf{3 4}} \boldsymbol{J}-\boldsymbol{s}\right)

Q4ChemistryUnit 2: Atomic Structure

The wavelength of the radiation emitted when an electron falls from Bohr orbit 4 to 2 in hydrogen atom is:

Q5ChemistryUnit 2: Atomic Structure

Which of the following statements about Rutherford's model of an atom are correct? This question has multiple correct options

Q6ChemistryUnit 2: Atomic Structure

IUPAC symbol of atomic number 119

Q7ChemistryUnit 2: Atomic Structure

An atomic hydrogen is:

Q8ChemistryUnit 2: Atomic Structure

Which of the following statements is not true about canal rays?

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Frequently asked questions

What makes a Atomic Structure question "important" for JEE?

Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.

Which subtopics in Atomic Structure are high-weightage?

Key areas include Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom, Bohr model of a hydrogen atom: its postulates, derivation of the relations for the energy of the electron and radii of the different orbits, limitations of Bohr's model, Dual nature of matter, de Broglie's relationship, Heisenberg uncertainty principle, Elementary ideas of quantum mechanics, the quantum mechanical model of the atom and its important features, and more. Prioritise these before moving to edge cases.

How many important questions should I revise?

Revise 30–50 important MCQs per unit in the last month before JEE. Focus on questions you got wrong at least once.

Can I practise only important questions on Goodmarks?

Pro users can filter by unit and subtopic to target high-yield areas. Free users can attempt sample questions on this page.