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How much of an 8 gram sample of 226 38 Ra will remain unchanged at the end of 3 half life periods?
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What is the formula of the ionic compound composed of calcium cations and chloride anions
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The ammonia molecule in the diagram has the observed bond orientation because
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How much of an 8 gram sample of 226 38 Ra will remain unchanged at the end of 3 half life periods?...
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