[" The half life of "Po^(218)" is 3minut...

[" The half life of "Po^(218)" is 3minutes.What "],[" fraction of a "10" gram sample of "Po^(218)" ,will "],[" remain after "15" minutes? "],[[" (1) "(1)/(32)," (2) "(1)/(64)," (3) "(1)/(25)," (4) "(1)/(15)],[" (a) "," (b) "(c)," (d) "]]

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