Unhexquadium

Unhexquadium is a radioactive element that has not been discovered. It will have 164 protons and 318 neutrons. Interest in the chemistry of unhexquadium is largely prompted by predictions that the isotope 482Uhq (with 164 protons and 318 neutrons), would be at the center of a possible second island of stability (the first being centered on 306Ubb or 298Fl ).[1][2][3]

Unhexquadium, 164Uhq
Unhexquadium
Unhexquadium in the periodic table
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 Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver 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 Gold Mercury (element) Thallium Lead 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 Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
Ununennium Unbinilium
Unquadtrium Unquadquadium Unquadpentium Unquadhexium Unquadseptium Unquadoctium Unquadennium Unpentnilium Unpentunium Unpentbium Unpenttrium Unpentquadium Unpentpentium Unpenthexium Unpentseptium Unpentoctium Unpentennium Unhexnilium Unhexunium Unhexbium Unhextrium Unhexquadium Unhexpentium Unhexhexium Unhexseptium Unhexoctium Unhexennium Unseptnilium Unseptunium Unseptbium
Unsepttrium Unseptquadum
Biniltrium Binilunium Binilbium Biniltrium Binilunium Binilbium Biniltrium Binilunium Binilbium Biniltrium Binilunium Binilbium Biniltrium Biunnilium Unpentseptium Unpentoctium Unpentennium Unhexnilium Unhexunium Unhexbium Unhextrium Unhexquadium Unhexpentium Unhexhexium Bibiunium Bibibium Bibiquadium
 Unbiunium Unbibium Unbitrium Unbiquadium Unbipentium Unbihexium Unbiseptium Unbioctium Unbiennium Untrinilium Untriunium Untribium Untritrium Untriquadium Untripentium Untrihexium Untriseptium Untrioctium Untriennium Unquadnilium Unquadunium Unquadbium
Untrioctium Untriennium Unquadnilium Unquadunium Unquadbium Untrioctium Untriennium Unquadnilium Unquadunium Unquadbium Untrioctium Untriennium Unquadnilium Unquadunium Unquadbium Untrioctium Untriennium Unquadnilium Unquadunium Unquadbium Unquadunium Unquadbium
 Ds
↑
Uhq
↓
(Buo)
unhextrium ← unhexquadium → unhexpentium
Atomic number (Z)164
Groupunknown
Periodperiod in the periodic table
Electrons per shell2, 8, 18, 32, 50, 32, 18, 4
Physical properties
Density (near r.t.)46 g/cm3
Atomic properties
Oxidation statesTemplate:Infobox element/symbol-to-oxidation-state: Symbol "Uhq" not known
Ionization energies
  • 1st: 690 kJ/mol
Other properties
Main isotopes of unhexquadium
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct
474Uhq syn
482Uhq syn

References
  1. Kratz, J. V. (5 September 2011). The Impact of Superheavy Elements on the Chemical and Physical Sciences (PDF). 4th International Conference on the Chemistry and Physics of the Transactinide Elements. Retrieved 27 August 2013.
  2. "Nuclear scientists eye future landfall on a second 'island of stability'". EurekAlert!. 6 April 2008.
  3. Grumann, Jens; Mosel, Ulrich; Fink, Bernd; Greiner, Walter (1969). "Investigation of the stability of superheavy nuclei around Z=114 and Z=164". Zeitschrift fur Physik. 228 (5): 371–386. Bibcode:1969ZPhy..228..371G. doi:10.1007/BF01406719. S2CID 120251297. Archived from the original on 2013-09-29. Retrieved 2021-02-12.
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