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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?

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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