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Structure of the Atom — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
Question
Put tick $(\checkmark)$ against correct choice and cross $(\times)$ against wrong choice.
Rutherford’s alpha-particle scattering experiment was responsible for the discovery of
  1. Atomic Nucleus.
  2. Electron.
  3. Proton.
  4. Neutron.
✓

Answer

Rutherford’s alpha-particle scattering experiment was responsible for the discovery of
  1. Atomic nucleus $(\checkmark)$
  2. Electron $(\times)$
  3. Proton $(\times)$
  4. Neutron $(\times)$

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