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galben [10]
2 years ago
12

A 20.0 gram sample of a certain radioisotope decays over a

Biology
1 answer:
VLD [36.1K]2 years ago
5 0

quantity of the substance remaining = initial quantity of the substance * (.5)^(time elapsed/half life of the substance)

2.50 = 20 * (.5)^(19.2/x)

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