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Chemistry, 01.06.2021 16:10 SoccerHalo

A 500g sample of Potassium-40 is left to decay radioactively. The half-life of Potassium-40 is 1.3 x 10 years. Based on this information, in how many years will 31.25g remain?
A)5.210^9
B)6.510^9
C)7.210^3
D)7.810^3

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