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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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Think Think
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9 years ago
Tritium (  H ) 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 12.3 years. After 49 years, approximately how much of the original tritium remains?
A) 50%
B) 25%
C) 12.5%
D) 6.25%
E) 3.12%

Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
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mel!811mel!811
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