Published by:
CGP EDU Academic Team
Published on: August 12, 2026
and 
belong respectively to
A
and 
radioactive disintegration series
B
and 
radioactive disintegration series
C
and 
radioactive disintegration series
D
and 
radioactive disintegration series
Text Solution
Verified by ExpertsThe correct answer is:
B
In 
the mass no. division by four gives a residue of 1.
In 
the mass no. division by four gives a residue of 2.
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