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Alpha particle is...

Alpha particle is

A

helium atom

B

joined helium molecule

C

ionsied helium atom

D

double ionised helium atom

Text Solution

Verified by Experts

The correct Answer is:
D
`alpha`-particle is identical with helium nucleus. It is represented as `""_(2)He" or "He^(2+)`. It is composed of 2 protons and 2 neutrons. Thus alpha particle is double ionised helium atoms.
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