Friday

March 6, 2015

March 6, 2015

Posted by **Cindy** on Tuesday, December 11, 2012 at 11:19pm.

Please help me!!

- Chemistry -
**DrBob222**, Tuesday, December 11, 2012 at 11:38pmWe prefer if you keep the same screen name. Look at your other radioisotope problems.

**Answer this Question**

**Related Questions**

physical science - sodium-24 has a half life of 15 hours,how much of a 50 gram ...

chemistry help! - Potassium has an atomic mass of 39.10amu. a sample of ...

Science - I need to know how much of a 2g sample of Technetium-99 would be left ...

chemistry - use logic and simple math to determine how long it will take for a ...

Math. Have answer, please show work - In a tracer method the potassium isotope ...

Chemistry - K-42 has a half-life of 12.4 hours. If you begin with 250g of K-42, ...

CALCULUS PLEASE HELP!! - suppose m(0) milligrams of a drug are put in the blood ...

CALCULUS PLEASE HELP - suppose m(0) milligrams of a drug are put in the blood of...

CALCULUS PLEASE HELP!! - suppose m(0) milligrams of a drug are put in the blood ...

Chemistry - indium-115 has a half life of 4.5 hours, if you start with a 12.0mg ...