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alpha-particle consists of...

`alpha`-particle consists of

A

2 protons only

B

2 protons and 2 neutrons only

C

2 electrons, 2 protons and 2 neutrons

D

2 electrons and 4 protons only

Text Solution

Verified by Experts

The correct Answer is:
B
`alpha` particle is nucleus of He, so it contains 2 protons and 2 neutrons
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