Question

1. Who discovered neutrons ?
2. What are a - rays ?
3. Mention the postulates of Rutherford a - scattering experiment
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Answer 1

1. james Chadwick

2. doubly charged helium atoms

3. most of the space in an atom is blank

the nucleus is concentrated and positively charged

mark as briainliest

Answer 2

J. Chadwick discovered neutrons