A sample of Tl−201 has an initial decay rate of 5.90×104 /s . A. How long...

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Question

A sample of Tl−201 has an initial decay rate of 5.90×104 /s .

A. How long will it take for the decay rate to fall to 347 /s ? (Tl−201 has a half-life of 3.042 days.)

science chemistry

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