Posted by **Evelyn** on Wednesday, January 9, 2013 at 7:27pm.

The half life of gold-197 is 10.6. What fraction of a sample remains after 21.2 years?

## Answer This Question

## Related Questions

- Chemistry - the half-life of cobalt-60 is 5.20 years.. how many milligrams of a ...
- Chemistry - Which radioactive sample would contain the greatest remaining mass ...
- Chemistry - After 1.78 years, 1.990 g of a radioisotope remains from a sample ...
- chemistry - an original sample of K-40 has a mass of 25.00 grams. After 3.9x 10 ...
- chemistry - What percent of the original sample of strontium-90 (half-life = 28....
- Chemistry - The half-life of 131I is 8.021 days. What fraction of a sample of ...
- chemistry - the half-life of polonium-218 is 3.0 minutes. what percentage of the...
- chemistry - a radioactive material is undergoing nuclear decay. After 40 minutes...
- Chemistry - Radioactivity - The activity of a sample of Ba-137m has decreased by...
- Chem 3A - please help me with this chemistry problem. Half-Life A radium-226 ...

More Related Questions