Class 12 · Physics
Atoms NEET Questions
100 verified questionsNCERT chapter mappedFree practiceAutomatic error log
Build recall in Atoms through active solving. This bank covers the complete chapter with original NEET-style MCQs, worked explanations and chapter-level NCERT provenance—without pretending original questions are previous-year questions.
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Three examples from the live 100-question bank. Answers appear after attempting them in practice mode.
Example 1 · difficulty 1/5
In a Geiger-Marsden type α-particle scattering experiment on a thin gold foil, it is observed that only about 1 in every 8000 α-particles is deflected through an angle greater than 90°. The most direct conclusion drawn from this rare large-angle scattering is that:
- A. the electrons of the atom carry most of its mass
- B. the atom as a whole is electrically neutral
- C. nearly all the mass and the entire positive charge of the atom are concentrated in a tiny central region
- D. α-particles are strongly attracted by the orbital electrons
Example 2 · difficulty 3/5
An α-particle with kinetic energy 5.0 MeV approaches a gold nucleus (Z = 79) head-on. Ignoring recoil, the distance of closest approach is approximately:
- A. 2.3 × 10⁻¹⁴ m
- B. 4.55 × 10⁻¹⁴ m
- C. 9.1 × 10⁻¹⁴ m
- D. 4.55 × 10⁻¹⁵ m
Example 3 · difficulty 2/5
According to the Bohr model, the radius of the first orbit of the He⁺ ion is:
- A. 0.265 Å
- B. 0.529 Å
- C. 1.058 Å
- D. 2.116 Å
The chapter mastery loop
- 1. Attempt firstExpose recall gaps before rereading.
- 2. Classify the missConcept, careless, rushed or guessed.
- 3. Re-practiceReturn until the error pattern disappears.
Frequently asked questions
How many Atoms NEET questions are available?
NeetVellum publishes 100 verified questions for this chapter. Free accounts use the daily UG quota; UG Pro removes it.
How should I revise Atoms for NEET?
Attempt questions before rereading, classify each miss, revisit the exposed NCERT concept, then re-practice until the error pattern disappears.