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""(88)""^(224)Ra decays by a series emmi...

`""_(88)""^(224)Ra` decays by a series emmision of three `beta-` particles and two `alpha-`particles. The end product of X is

A

`""_(88)""^(220)X`

B

`""_(87)""^(216)X`

C

`""_(90)""^(234)X`

D

`""_(88)""^(216)X`

Text Solution

Verified by Experts

The correct Answer is:
b
During the emission of `alpha` particle `Zdarr` by 2 units and `Adarr` by 4 units
During the emmision of `beta` particle `Zuarr` by 1 unit and A doesn t change
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