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The half life of radium is 1690 years. If 10 grams are present now, how much will be present in 50 years?
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The half life of radium is 1690 years. If 10 grams are present now, how much will be present in 50 years?

User NickP
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33.8 grams hope this helps
User Gennaro Arguzzi
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