Monday

March 30, 2015

March 30, 2015

Posted by **Pamela** on Sunday, April 15, 2012 at 11:07pm.

- Calc -
**Pamela**, Sunday, April 15, 2012 at 11:11pmradio active radium(226)

- Calc -
**Steve**, Monday, April 16, 2012 at 12:24amLet P be the initial amount

n be the years

A the amount remaining after n years

A = P*(1/2)^(n/1599)

A/P = (1/2)^(n/1599)

so, the % remaining is

100*(1/2)^(n/1599)

**Answer this Question**

**Related Questions**

math - Radioactive radium has a half-life of approximately 1599 years. What ...

math - Radioactive radium has a half-life of approximately 1599 years. What ...

Chemistry - Which radioactive sample would contain the greatest remaining mass ...

Math - After 150 thousand years, only 1/8 of the original amount of a particular...

Calculus - The half-life of Radium-226 is 1590 years. If a sample contains 100 ...

Chem 3A - please help me with this chemistry problem. Half-Life A radium-226 ...

chemistry - What percent of the original sample of strontium-90 (half-life = 28....

Chemistry - Uranium-238 has half life of 4.51 * 10^9 years Uranium-234 has half ...

calculus - The rate at which an amount of a radioactive substance decays is ...

Physics - Suppose you have 100 g of radioactive plutonium-239 with a half-life ...