Textbook ExpertVerified Tutor
3 Feb 2022
Given information
amount of radon
Step-by-step explanation
Step 1.
Activity is given by:
here the number of molecules 
since molar mass of radon is 
is the half-life of radon.
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Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922