Advanced Math/half lives

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Expert: Sherman D. - 6/21/2005


Question
If a scientist purifies 1.0 gram of radium-226, how many years must pass before
only 0.50 gram of the original radium-226 sample remains unchanged?
The answer is 1600, but how do we know from the original question that when it says original, it doesn't mean before the purification.ANd then how would you be abe to solve the problem.They don't give you the original amount of uranium?

Answer
This is the only kind of info i could find, if you could give me what that symbol value is that is under the -t in
Aoe^(-t/¶) at

http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/halfli2.html#c1"

or

http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/meanlif.html#c1

then i could probably tell you how to find it.

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Sherman D.

Expertise

I can answer questions dealing in mathematics of all kinds except for Physics and Calculus, but i can answer questions in Pre-Calculus and Chemistry. I can also answer questions in Recipes of all kinds. I can find games cheats/walkthroughs, but i can`t find a specific game online or offline. I can also do history and recipes for alcoholic beverages.

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Mathematics, Recipes, History, and Games.

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High School graduated. I graduated with honors, and i was in Beta Club for a year and a half.

Awards and Honors
Principle's list and A and B honor roll in high school only.

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