Meitnerium

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Meitnerium,  109Mt
General properties
Mass nummer 278 (most stable isotope)
Meitnerium 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
Ir

Mt

(Uhu)
hassiummeitneriumdarmstadtium
Atomic nummer (Z) 109
Group group 9
Period period 7
Element category   unknown chemical properties
Block d-block
Electron confeeguration [Rn] 5f14 6d7 7s2 (calculated)[1][2]
Electrons per shell
2, 8, 18, 32, 32, 15, 2 (predictit)
Pheesical properties
Phase (at STP) solit (predictit)[3]
Density (near r.t.) 37.4 g/cm3 (predictit)[1]
Atomic properties
Oxidation states 9, 8, 6, 4, 3, 1 (predictit)[1][4][5][6]
Ionisation energies
  • 1st: 800.8 kJ/mol
  • 2nd: 1823.6 kJ/mol
  • 3rd: 2904.2 kJ/mol
  • (more) (aw estimatit)[1]
Atomic radius empirical: 128 pm (predictit)[1][6]
Covalent radius 129 pm (estimatit)[7]
Miscellanea
Creestal structur ​face-centred cubic
[[File:face-centred cubic|50px|alt=Face-centred cubic creestal structur for meitnerium|Face-centred cubic creestal structur for meitnerium]]

(predictit)[3]
Magnetic orderin paramagnetic (predicted)[8]
CAS Nummer 54038-01-6
History
Namin after Lise Meitner
Diskivery Gesellschaft für Schwerionenforschung (1982)
Main isotopes o meitnerium
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
278Mt syn 7.6 s α 274Bh
276Mt syn 0.72 s α 272Bh
274Mt syn 0.44 s α 270Bh
270mMt ? syn 1.1 s α 266Bh
| references | in Wikidata

Meitnerium is a chemical element wi seembol Mt an atomic nummer 109.

References[eedit | eedit soorce]

  1. 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. The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. ISBN 1-4020-3555-1. 
  2. Thierfelder, C.; Schwerdtfeger, P.; Heßberger, F. P.; Hofmann, S. (2008). "Dirac-Hartree-Fock studies of X-ray transitions in meitnerium". The European Physical Journal A. 36 (2): 227. Bibcode:2008EPJA...36..227T. doi:10.1140/epja/i2008-10584-7. 
  3. 3.0 3.1 3.2 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. Ionova, G. V.; Ionova, I. S.; Mikhalko, V. K.; Gerasimova, G. A.; Kostrubov, Yu. N.; Suraeva, N. I. (2004). "Halides of Tetravalent Transactinides (Rf, Db, Sg, Bh, Hs, Mt, 110th Element): Physicochemical Properties". Russian Journal of Coordination Chemistry. 30 (5): 352. doi:10.1023/B:RUCO.0000026006.39497.82. 
  5. Himmel, Daniel; Knapp, Carsten; Patzschke, Michael; Riedel, Sebastian (2010). "How Far Can We Go? Quantum-Chemical Investigations of Oxidation State +IX". ChemPhysChem. 11 (4): 865–9. doi:10.1002/cphc.200900910. PMID 20127784. 
  6. 6.0 6.1 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. 
  7. Chemical Data. Meitnerium - Mt, Royal Chemical Society
  8. Saito, Shiro L. (2009). "Hartree–Fock–Roothaan energies and expectation values for the neutral atoms He to Uuo: The B-spline expansion method". Atomic Data and Nuclear Data Tables. 95 (6): 836. Bibcode:2009ADNDT..95..836S. doi:10.1016/j.adt.2009.06.001. 
  9. Emsley, John (2003). Nature's Building Blocks. Oxford University Press. ISBN 978-0198503408. Retrieved 12 November 2012. 
  10. "Meitnerium". Periodic Table of Videos. The University of Nottingham. Retrieved 15 October 2012.