Structure of Atom — Practice Quiz
CBSE · Class 11 · Chemistry
Try a 4-question quiz on Structure of Atom for CBSE Class 11 Chemistry: tap an answer to check it and see why. 163 questions in the full chapter test.
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Quick Quiz: Structure of Atom
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
Who proposed the first scientific atomic theory in 1808?
Which subatomic particle was first discovered using cathode ray tubes?
What was the primary limitation of Dalton's atomic theory?
Who conducted the famous alpha-particle scattering experiment?
Sample Questions
What is the charge of an electron?
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-1.602 × 10⁻¹⁹ C
The electron carries a negative charge of -1.602 × 10⁻¹⁹ coulombs, as determined by R.A. Millikan's oil drop experiment.
In Bohr's atomic model, what determines the energy of an electron?
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Principal quantum number
In Bohr's model of the hydrogen atom, the energy of an electron is determined solely by its principal quantum number (n).
What is the maximum number of electrons in the first shell (K shell)?
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2
The first shell (K shell) can accommodate a maximum of 2 electrons, following the formula 2n², where n is the principal quantum number.
Who proposed the uncertainty principle?
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Werner Heisenberg
Werner Heisenberg proposed the uncertainty principle in 1927, stating that it is impossible to simultaneously determine the exact position and momentum of an electron.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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