Question

1. which problem of atomic structure was solved by the discovery of neutron?.. (1mark)

2. In rutherford's experiment of scattering of alpha-particle, can we take foil of any other metal instead of gold foil?. (1mark)

please answer it in 1 mark
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Answer 1

Explanation:

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Answer 2

Answer:

1. The problem was that the time when the neutron was not discovered , many scientists found that the atomic mass of many atoms was found to be double or more than double the mass of total number of protons(as the mass of electron was so small that it was assumed to be negligible), so by the discovery of neutron
2. For the metal foil, they tested a variety of metals, but they preferred gold because they could make the foil very thin, as gold is very malleable. As a source of alpha particles, Rutherford's substance of choice was radon, a substance several million times more radioactive than uranium.