Chemistry, 24.01.2021 03:40 tylorwsimmons

ASAP PLZ The table shows the amount of radioactive element remaining in a sample over a period of time. Radioactive Decay Rate Amount of Radioactive Sample (grams) Time (years)
56.0--0
47.1---400
39.6--800
33.3 --1,200
281,600
Part 1: What is the half-life of the element? Explain how you determined this. Part 2: How long would it take 312 g of the sample to decay to 9.75 grams? Show your work or explain your answer.

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