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Q.

Is it true that James Chadwick discovered neutrons in 1932?


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a

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answer is A.

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Detailed Solution

The above statement is true.
The British physicist Sir James Chadwick is credited with the discovery of neutrons in the year 1932. James Chadwick bombarded beryllium (Be) atoms with alpha particles. As a result, an unknown radiation was produced. He interpreted that this radiation is composed of particles having a neutral electrical charge and the approximate mass of a proton. This particle became known as the neutron.
 
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