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Tritium (3H) is an isotope of hydrogen that is sometimes used to make the hands of...

Tritium (3H) is an isotope of hydrogen that is sometimes used to make the hands of watches glow in the dark. The half-life of tritium is 12 years. If you start with 4 milligrams of tritium and wait 60 years, approximately how much of the original tritium remains?

0.0625 mg

0.500 mg

12 mg

0.250 mg

0.125 mg

0 0
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