Radon (Ra) decays into Polonium ( 
) by emitting an 
-particle with half-life of 4 days. A sample contains 
atoms of 
. After 12 days, the number of atoms of 
left in the sample will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
In the given case, 12 days 
half lives Number of atoms left after 3 half lives.
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