Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Promoted
Phys help:The cadmium isotope has a half-life of 462 days. A sample begins with atoms. How many are left after?
The cadmium isotope has a half-life of 462 days. A sample begins with atoms. How many are left after (a) 49 days, (b) 630 days, and (c) 5600 days
1 Answer
Relevance
- hayharbrLv 78 years agoFavorite Answer
You'd have to know the starting number of atoms. Suppose it is 2000 atoms. Then
A = amount left
A = 2000 (1/2) ^ (49/462)
A = about 1858
like that. Put the amount of days over the length of one half-life.
Still have questions? Get your answers by asking now.