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Physics, 03.10.2021 03:00 Apple557

The Environmental Protection Agency has ben concerned about the levels of radon gas in homes. If a sample of gas taken from a basement contains 4.38 g of radon 222, how much radon will remain in the sample after 4 half-lives? 0.28 g

2.19 g

1.10 g

4.38 g

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