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The radioactive isotope .(90)^(234)Th u...

The radioactive isotope `._(90)^(234)Th` undergoes two successive `beta-` decay followed by one `alpha-` decay. The atomic number and mass number respectively of the resulting atom is:

A

92 and 234

B

94 and 230

C

90 and 230

D

92 and 230

Text Solution

Verified by Experts

The correct Answer is:
C
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