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A radioactive element .90 X^238 decay in...

A radioactive element `._90 X^238` decay into `._83 Y^222`. The number of `beta-`particles emitted are.

A

4

B

6

C

2

D

1

Text Solution

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The correct Answer is:
D
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TARGET PUBLICATION-ATOMS, MOLECULES AND NUCLEI -Competitive Thinking
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