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If Radium-223 has a half

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In 1976 a research hospital bought half a gram of radium for cancer research. Assuming the hospital is still exists, how much of
1. 1 answer
2. asked by Kate
3. 2,230 views
In 1976 a research hospital bought half a gram of radium for cancer research. Assuming the hospital is still exists, how much of
1. 0 answers
2. asked by Kate
3. 482 views
please help me with this chemistry problem.Half-Life A radium-226 sample initially contains 0.112 mol. How much radium-226 is
1. 2 answers
2. asked by shylo
3. 757 views
A radium-226 sample initially contains 0.112mol. How much radium-226 is left in the sample after 6400 years. The half-life of
1. 3 answers
2. asked by Gaby
3. 1,076 views
Radium-223 has a half-life of 11.4 days.Approximately how long would it take for the activity of a sample of Radium-223 to
1. 2 answers
2. asked by Michelle
3. 2,760 views
please help me ...Experiments show that radium at rate proportional to the amount of radium present at the moment . if half life
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2. asked by NOEL
3. 595 views
experiments show that radium disintegrates at a rate proportional to the amount of radium present at the moment . if half life
1. 2 answers
2. asked by NOEL
3. 686 views
Radium has a half-life of 1620 years and decays into radon, which has a half-life of 3.82 days. A 10-gm source of radium is
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2. asked by Nivia
3. 498 views
radium decomposes at a rate proportional to the amount instantaneously present.Find the half-life of radium if three-fourths of
1. 5 answers
2. asked by HELP ME PLEASE
3. 791 views
Radium decays exponentially. Its half-life is 1,690 years. How long will it take for a 50-gram sample of radium to be reduced to
1. 3 answers
2. asked by Anonymous
3. 3,403 views

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