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A simple of radium weight

A simple of radium weight 1000g. How long will it take to decay to 125g if its half life is 1620 years??
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2. asked by Charles
3. 977 views
Radium is a member of the alkaline earth family. In addition to being a part of this family, what is another property of radium
1. 1 answer
2. 73 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
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2. asked by Gaby
3. 1,138 views
In 1976 a research hospital bought half a gram of radium for cancer research. Assuming the hospital is still exists, how much of
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2. asked by Kate
3. 540 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. 1 answer
2. asked by Kate
3. 2,313 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. 2,816 views
What are some things that are in the US that use or need radium to operate?Radium has very few commercial uses these days, it
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2. asked by Lanna
3. 572 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. 653 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. 828 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. 756 views