Darmstadtium is a chemical element wi seembol Ds an atomic nummer 110.

Darmstadtium, 110Ds
Darmstadtium
PronunciationListeni/dɑːrmˈʃtɑːtiəm/ (darm-SHTAH-tee-əm[1])
Mass number[281]
Darmstadtium in the periodic cairt
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gowd Mercur (element) Thallium Leid (element) Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
Pt

Ds

(Uhb)
meitneriumdarmstadtiumroentgenium
Atomic nummer (Z)110
Groupgroup 10
Periodperiod 7
Blockd-block
Element category  Unkent chemical properties
Electron confeeguration[Rn] 5f14 6d8 7s2 (predictit)[2]
Electrons per shell2, 8, 18, 32, 32, 16, 2 (predictit)[2]
Pheesical properties
Phase at STPsolit (predicted)[3]
Density (near r.t.)34.8 g/cm3 (predictit)[2]
Atomic properties
Oxidation states(0), (+2), (+4), (+6), (+8) (predicted)[2][4]
Ionisation energies
  • 1st: 955.2 kJ/mol
  • 2nd: 1891.1 kJ/mol
  • 3rd: 3029.6 kJ/mol
  • (more) (aw estimatit)[2]
Atomic radiusempirical: 132 pm (predictit)[2][4]
Covalent radius128 pm (estimatit)[5]
Ither properties
Naitural occurrencesynthetic
Creestal structurbody-centred cubic (bcc)
Body-centered cubic creestal structur for darmstadtium

(predictit)[3]
CAS Nummer54083-77-1
History
Naminafter Darmstadt, Germany, whaur it was discovered
DiskiveryGesellschaft für Schwerionenforschung (1994)
Main isotopes o darmstadtium
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
281Ds syn 11 s 94% SF
6% α 277Hs
281mDs ? syn 3.7 min α 277mHs ?
279Ds syn 0.20 s 10% α 275Hs
90% SF
| references

ReferencesEedit

  1. "Darmstadtium". Periodic Table of Videos. The University of Nottingham. Retrieved 19 October 2012.
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 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. ISBN 978-1-4020-3555-5. Cite error: Invalid <ref> tag; name "Haire" defined multiple times wi different content
  3. 3.0 3.1 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.
  4. 4.0 4.1 4.2 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.
  5. Chemical Data. Darmstadtium - Ds, Royal Chemical Society
  6. "Darmstadtium". Periodic Table of Videos. The University of Nottingham. Retrieved 19 October 2012.