A radio active element (x) has a half-life of 38 hours. Initially, x = x.. Determine the amount of radio active element at any time, t. t In(0.5) 38. -t In(0.5) 38 ə°x = x t In(0.1) x = X,e 38 4 In(0.1) x = x,e t In(0.5) x= x,e 38 -t In(0.5) x3D Ce 38

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