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Alpha Decay

In a radioact...

Question

In a radioactive decay, neither the atomic number nor the mass number changes. Which of the following particles is emitted in the decay?

A

proton.

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B

neutron.

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C

electron.

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D

photon.

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Solution

The correct option is D photon.
As the mass number and atomic number remains same, the mass and charge of nucleus remains same. So only thing emitted without any mass or charge is photon.

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