(a) the isotope lead 208, which is the final decay product of the series of radioactive transformations beginning with the common isotope of…
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| 释义 | the world > matter > chemistry > experiments > [noun] > scientific method > of isotopic dating (2) thorium lead1914 (a) the isotope lead 208, which is the final decay product of the series of radioactive transformations beginning with the common isotope of… potassium–argon1953 (attributive) designating or relating to a method of isotopic dating based on measurement of the relative amounts in rock of potassium-40 and its… |
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