Ask a New Question
Search
The half life of gold-197 is 10.6. What fraction of a sample remains after 21.2 years?
1 answer
amount remaining=Original e^(-ln2*21.1/10.6)
amount remaining/original=.252 check that
Ask a New Question
or
answer this question
.
Similar Questions
If the half-life of an unstable isotope is 10,000 years, and only 1/8 of the radioactive parent remains in a sample, how old is
1 answer
Plutonium-239 has a half-life of 24 000 years. What percent of plutonium-239 remains after 10 000 years? (Answer=74.9%)
AND After
4 answers
the half-life of cobalt-60 is 5.20 years.. how many milligrams of a 2.000-mg sample remains after 6.55 years
1 answer
After 1.78 years, 1.990 g of a radioisotope remains from a sample that had an original mass of 2.000 g.
Calculate the half-life
1 answer
more similar questions