Question
Which one of the subatomic particles was not explained by Rutherford?
- Electron
- Neutron
- Proton
- None of these
Hint:
Rutherford projected alpha particles at gold foil, and the positive alpha particles were deflected. He concluded that protons exist in a nucleus and have a positive nuclear charge.
The correct answer is: Electron
The atom, as described by Rutherford, has a tiny, massive core called the nucleus. The nucleus has positively charged protons. Electrons are particles with a negative charge. Electrons orbit the nucleus.
Hence, Rutherford could not explain Neutrons.
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