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Which of the following element is an iso...

Which of the following element is an isodiapher of `._(92)Pb^(212)`?
a`._(92)U^(235)` b. `._(90)Th^(231)` c. `._(83)Bi^(209)` d. `._(91)Pa^(231)`

A

a`._(92)U^(235)`

B

b. `._(90)Th^(231)`

C

c. `._(83)Bi^(209)`

D

d. `._(91)Pa^(231)`

Text Solution

Verified by Experts

The correct Answer is:
b. `._(90)Th^(231)`
Isodiaphers are formed by `alpha`-emission
`._(92)U^(235) rarr ._(90)Th^(231) + ._(2)He^(4)`
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