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A sample of radium-226 will

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
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please help me with this chemistry problem.Half-Life A radium-226 sample initially contains 0.112 mol. How much radium-226 is
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2. asked by shylo
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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
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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
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2. asked by Anonymous
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A sample of radium-226 will decay to ¼ of its original amount after 3200 years. What is the half-life of radium-226?years
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Radium is a member of the alkaline earth family. In addition to being a part of this family, what is another property of radium
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What do scientists use to date objects accurately?(1 point)Responses There is no way to accurately date objects. There is no way
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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
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2. asked by Kate
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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
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2. asked by Kate
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Radium-221 has a half-life of 30 s. How long will it take for 95% of a sample to decay
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2. asked by Shellie
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