Chemistry, 03.12.2021 01:00 KHaire7013

The table shows the amount of radioactive element remaining in a sample over a period of time. Amount of Radioactive Sample
(grams) Time(hours)

186.0 0
147.0 7
117.0 14
93.0 21
23.3 63

Part 1: What is the half-life of the element? Explain how you determined this.
Part 2: How long would it take 320 g of the sample to decay to 2.5 grams? Show your work or explain your answer.

Answers: 1

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