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Alpha particle is...

Alpha particle is

A

helium atom

B

joined helium molecule

C

ionised 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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