Top topic this week
Back to FAQs
Related FAQs
Frequently Asked Question
Questions asked by users might not always be phrased in the clearest way.
Tritium has a half-life of 12.5 years. if you had a sample of 8.00 grams of tritium today, how many grams of tritium would you have in 37.5 years?
Accepted Answer
In 37.5 years, you would have 1.00 gram of tritium left. Here's why:
37.5 years is three half-lives of tritium (37.5 years / 12.5 years/half-life = 3 half-lives).
After each half-life, the amount of tritium is halved:
After 12.5 years: 8.00 grams / 2 = 4.00 grams
After 25 years: 4.00 grams / 2 = 2.00 grams
After 37.5 years: 2.00 grams / 2 = 1.00 gram
Articles you might like