The half-life of tritium ( 3
1 H)is 12 years.How long does it take for 16.0 ng of tritium to decay to the point where 2.0 ng remains?

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Quizplus · Accepted Answer

The half-life of tritium is 12 years, meaning every 12 years, the amount of tritium halves. Starting with 16.0 ng, after 12 years, 8.0 ng would remain; after another 12 years (24 years in total), 4.0 ng would remain; and after another 12 years (36 years in total), 2.0 ng would remain. Therefore, it takes 36 years for 16.0 ng of tritium to decay to 2.0 ng.

The Half-Life of Tritium ( 3