<Li> Jump up ^ Believed to undergo α decay to Pt </Li> <Li> Jump up ^ Believed to undergo α decay to Pt </Li> <Li> Jump up ^ Believed to undergo α decay to Pt or β β decay to Pb </Li> <Ul> <Li> Values marked #are not purely derived from experimental data, but at least partly from systematic trends . Spins with weak assignment arguments are enclosed in parentheses . </Li> <Li> Uncertainties are given in concise form in parentheses after the corresponding last digits . Uncertainty values denote one standard deviation, except isotopic composition and standard atomic mass from IUPAC, which use expanded uncertainties . </Li> </Ul>

How many protons neutrons and electrons are there in a neutral atom of the isotope of mercury 200hg
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