Chemistry, 13.07.2021 04:00 angelasequen5656
Astatine -211 has half a life of seven hours. If u start with 50.0 grams of astatine-211, how much will remain after 28 hours
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Astatine -211 has half a life of seven hours. If u start with 50.0 grams of astatine-211, how much w...
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