Posted by **<3** on Thursday, February 18, 2010 at 11:49pm.

The half-life of Palladium-100 is 4 days. After 12 days a sample of Palladium-100 has been reduced to a mass of 4 mg. What was the initial mass (in mg) of the sample? What is the mass 5 weeks after the start?

## Answer this Question

## Related Questions

- calculus - The half-life of Radium-223 is 11.43 days. If a sample has a mass of ...
- calculus - The half-life of Radium-223 is 11.43 days. If a sample has a mass of...
- chemistry - isotope chromium -51 has a half life of 28 days. If the original ...
- Physical Science- Help Please! - Suppose that you are given a 100 gram sample of...
- chemistry - a sample of a radioisotope had a mass of 100.0 grams. After exactly ...
- chemistry - The half-life for the radioactive decay of calcium-47 is 4.5 days.If...
- calc - The half-life of polonium is 139 days, but your sample will not be useful...
- math - An unknown radioactive element decays into non-radioactive substances. In...
- calculus - The rate at which an amount of a radioactive substance decays is ...
- UIW - Neptunium-239 has a half-life of 2.35 days. How many days must elapse for ...