What does the symbol Pb stand for on the periodic table of elements? - Quora
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What does PB mean? - PB Definitions | Abbreviation Finder
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GChron - Short communication: On the potential use of materials with heterogeneously distributed parent and daughter isotopes as primary standards for non-U–Pb geochronological applications of laser ablation inductively coupled plasma mass spectrometry (
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Lead | Definition, Uses, Properties, & Facts | Britannica