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Radioactive radium () has a

Suppose a radioactive substance decays according to the equation whererepresent the mass in grams after hours. Assume that the
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2. asked by blue
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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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In addition to uranium, which elements were known to emit radioactive "rays" before M. Curie discovered radium?
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2. asked by Lilly
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Which scientist discovered the two radioactive elements radium and polonium?A. Marie Curie B. Niels Bohr C. Albert Einstein D.
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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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Radioactive radium () has a half-life of 1599 years. What percent of a given amount will remain after years?
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2. asked by Pamela
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Radioactive radium has a half-life of approximately 1599 years. What percent of a given amount remains after 100 years?
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Radioactive radium has a half-life of approximately 1599 years. What percent of a given amount remains after 100 years?
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2. asked by rachel
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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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