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How long does it take for 16.0 ng of tritium to decay to the point where 2.0 ng remains?
Wiki User
∙ 10y ago
36 years.
It's half life is 12 years. That means in 12 years there will be 8ng left, in another 12 years there will be 4ng, and in another 12 years, there will be 2. 12*3=36
Wiki User
∙ 10y ago
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