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How many actinoids are radioactive ?...

How many actinoids are radioactive ?

A

Only one

B

7

C

14

D

12

Text Solution

Verified by Experts

The correct Answer is:
C
All the actinoids are radioactive. All the elements after `82^(Pb)`, that is form `83^(Bi)` onwards, have unstable nuclei and undergo radioactive decay.
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