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Approximately what precent of parent isotopes remains after 0.5 half lives have passed
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Approximately what precent of parent isotopes remains after 0.5 half lives have passed

User George Herolyants
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if 1 half life is over than 50 percent is left
I think it would be logicak to assume after half a half life passes there will be 75 percent left
User Raphael Setin
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