A short-lived decay product or radon 222. the isotopes are from the decay from bismuth 214, known as radium C, lead 214, known as radium B and polonium 214 and 218 that are known as radium A.
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A short-lived decay product or radon 222. the isotopes are from the decay from bismuth 214, known as radium C, lead 214, known as radium B and polonium 214 and 218 that are known as radium A.
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