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Title: Tritium ( H ) is an isotope of hydrogen that is sometimes used to make the hand Post by: Think on Dec 6, 2014 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% Title: Re: Tritium ( H ) is an isotope of hydrogen that is sometimes used to make the hand Post by: mel!811 on Dec 6, 2014 Content hidden
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