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Three alpha-particle and one beta-partic...

Three `alpha-`particle and one `beta-`particle decaying takes place in series from an isotope `._88 Ra^238`. Finally the isotope obtained will be.

A

`""_(84) X^(220)`

B

`""_(86) X^(222)`

C

`""_(83)X^(226)`

D

`""_(83) X^(215)`

Text Solution

Verified by Experts

The correct Answer is:
C
The atomic number and mass number of resulting atom will be , `Z = 88-3 xx 2 + 1 = 83`
and `A = 238 - 3 xx 4 = 226`
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