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An element with atomic number 84 and mas...

An element with atomic number 84 and mass number 218 loses one `alpha-`particle and two `beta-`particles in three successive stages, the resulting element will have

A

At. no. 84 and mass number 214

B

At. no. 82 and mass number 214

C

At. no. 84 and mass number 218

D

At. no. 82 and mass number 218

Text Solution

Verified by Experts

The correct Answer is:
A
`""_(84)A^(218) to ""_(84)B^(214) + ""_(2)He^(4) + 2 ""_(-1)e^0`
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