The number of atoms of a radioactive substance at t = 0 is 8 x 10

1.	The number of atoms of a radioactive substance at t = 0 is 8 x 10
A.	9 years
B.	12 years
C.	16 years
D.	none
Answer» C. 16 years

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The number of atoms of a radioactive substance at t = 0 is 8 x 10

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