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Emission of an alpha paritcle leads to a...

Emission of an alpha paritcle leads to a

A

decrease of 2 units in the charge of the atom

B

increase of 2 units in the mass of the atom

C

decrease of 2 units in the mass of the atom

D

increase of 4 units in the mass of the atom

Text Solution

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The correct Answer is:
A
When an apha particel is emitted from a radioactive element then ists atomic number is decreased by 2 units and mass number is decreased by 4 units .
`_(84)PO^(210)rarr_(82Pb^(206)+_(2)He^(4)`
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