Physics, 25.02.2022 21:40, YokoUndera

A sample atom X has a half life of 7,000,000 years. If I you start with 840kg of atom x how much atom X is left after 4 half lives have passed?

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A sample atom X has a half life of 7,000,000 years. If I you start with 840kg of atom x how much ato...