If we start with 'x' mg of Radon-222 and are left with 0.1 mg after 16 – McqOptions

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1.	If we start with 'x' mg of Radon-222 and are left with 0.1 mg after 16 hours given that half life of Radon-222 is 4 hours, how much is 'x'?
A.	0.8
B.	0.4
C.	1.6
D.	0.016
Answer» D. 0.016

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