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U^238 emits...

`U^238` emits

A

Gamma–rays

B

Beta–rays

C

Alpha–rays

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Uranium 238 produced thorium- 234 by alpha decay. An alpha particle is a helium nucleus, it contains 2 protons and 2 neutrons for a mass number of 4 .
`""_(92)^(238)U to ""_(90)^(234)Th + ""_(2)^(4)He` .
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