Darmstadtium, 110 General properties Pronunciation Template:Infobox element/pronunciation Standard atomic weight (A r, standard ) Template:Infobox element/standard atomic weight Mass number Template:Infobox element/symbol-to-most-stable-isotope (most stable isotope)Darmstadtium in the periodic table Template:Infobox element/periodic table Atomic number (Z ) 110 Group Template:Infobox element/group Period period 7 Block d-block Element category Template:Infobox element/category format , but probably a transition metal Electron configuration [Rn ] 5f14 6d8 7s2 (predicted) [1] Electrons per shell
2, 8, 18, 32, 32, 16, 2 (predicted) [1] Physical properties Phase at STP solid (predicted) [2] Density (near r.t. ) 34.8 g/cm3 (predicted) [1] Atomic properties Oxidation states Template:Infobox element/symbol-to-oxidation-state [[Ionization energy|Template:Engvar energies]] 1st: 960 kJ/mol 2nd: 1890 kJ/mol 3rd: 3030 kJ/mol (more ) (all estimated) [1] Atomic radius empirical: 132 pm (predicted) [1] [3] Covalent radius 128 pm (estimated) [4] Template:Infobox element/spectral lines Other properties Crystal structure Template:Infobox element/crystal structure (predicted) [2] CAS Number 54083-77-1 History Naming after Darmstadt , Germany, where it was discovered Discovery Gesellschaft für Schwerionenforschung (1994) Main isotopes of darmstadtium Template:Infobox element/isotopes table | references
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↑ 1.0 1.1 1.2 1.3 1.4 1.5 Hoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media . ISBN 1-4020-3555-1 ↑ 2.0 2.1 Östlin, A.; Vitos, L. (2011). "First-principles calculation of the structural stability of 6d transition metals". Physical Review B . 84 (11). Bibcode :2011PhRvB..84k3104O . doi :10.1103/PhysRevB.84.113104 . ↑ 3.0 3.1 Fricke, Burkhard (1975). "Superheavy elements: a prediction of their chemical and physical properties" . Recent Impact of Physics on Inorganic Chemistry . 21 : 89–144. doi :10.1007/BFb0116498 . Retrieved 4 October 2013 . ↑ Chemical Data. Darmstadtium - Ds , Royal Chemical Society