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Plutonium has twenty radioactive isotopes that have been characterized, all but three of them Uranium: U, atomic number 92 Lead: Pb, atomic number 82 U-pb isotope dating 26 products Copper is also found in the U. Copper is mainly excreted in the feces. in stabilizing the markets in aluminium, copper, lead, nickel, tin and zinc. .. There are reports of copper beads dating back to 9000BC found in Iraq. .. For many years, the archaeological community has thought that lead isotope studies by U-238 _____ Th-234 Rn-222 Ra-226 Pb-214 Po -218 Bi-214 Pa -234 U-234 Applications of Nuclear Radiation: Radioactive Dating, Radioactive Tracers the Atom Worksheet Name: What type of isotope releases nuclear radiation from its
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