Explain track representing the fission of one atom of 232th

Reference no: EM13543762

A rock that contains 3.0 10-15 mol of 232Th (t1/2 = 1.4 multiplied by 1010 yr) has 7.7 104 fission tracks, each track representing the fission of one atom of 232Th. How old is the rock?

Reference no: EM13543762

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