Rhenium Rhenium diboride Group 7 element Bohrium Technetium Dimanganese decacarbonyl Osmium Iridium Manganese Transition metal chloride complex Ruthenium Geochemistry Iodine Oxidation state South America History of the periodic table Berkelium Iron Roentgenium Silicon Periodic table Diamond Marcellus Formation Transition metal Electron shell Gold Detailed logarithmic timeline Nitrogen Extended periodic table Actinide Glossary of engineering: M–Z List of CAS numbers by chemical compound