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Dubnyum

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Dubnium
105Db
Ta
↑
Db
↓
(Ups)
Hydrogen (other non-metal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (other non-metal)
Nitrogen (other non-metal)
Oxygen (other non-metal)
Fluorine (halogen)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (other non-metal)
Sulfur (other non-metal)
Chlorine (halogen)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (other non-metal)
Bromine (halogen)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (halogen)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanoid)
Cerium (lanthanoid)
Praseodymium (lanthanoid)
Neodymium (lanthanoid)
Promethium (lanthanoid)
Samarium (lanthanoid)
Europium (lanthanoid)
Gadolinium (lanthanoid)
Terbium (lanthanoid)
Dysprosium (lanthanoid)
Holmium (lanthanoid)
Erbium (lanthanoid)
Thulium (lanthanoid)
Ytterbium (lanthanoid)
Lutetium (lanthanoid)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (halogen)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinoid)
Thorium (actinoid)
Protactinium (actinoid)
Uranium (actinoid)
Neptunium (actinoid)
Plutonium (actinoid)
Americium (actinoid)
Curium (actinoid)
Berkelium (actinoid)
Californium (actinoid)
Einsteinium (actinoid)
Fermium (actinoid)
Mendelevium (actinoid)
Nobelium (actinoid)
Lawrencium (actinoid)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Ununtrium (unknown chemical properties)
Flerovium (unknown chemical properties)
Ununpentium (unknown chemical properties)
Livermorium (unknown chemical properties)
Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
rutherfordium ←dubnium →seaborgium
Panagway
unknown
Kinatibuk-ang mga kinaiya
Ngalan,simbolo,kaiphandubnium, Db, 105
Paglitok/ˈduːbniəm/
[[Help:Pronunciation respelling key|Plantilya:Smallcaps all-nee-əm]]
Kategoriyang elementoputhaw nga transisyon
Group,period,block5, 7,d
Gibug-aton sa atomo[268]
Kontorno sa elektron[Rn] 5f14 6d3 7s2
(predicted)[1]

2, 8, 18, 32, 32, 11, 2
(predicted)
Electron shells of dubnium (2, 8, 18, 32, 32, 11, 2 (predicted))
Electron shells of dubnium(2, 8, 18, 32, 32, 11, 2
(predicted))
History
PagkadiskobreJoint Institute for Nuclear Research(1968)
Physical properties
Phasemagahi(predicted)
Density (nearr.t.)29(predicted)[1] g·cm−3
Atomic properties
Oxidation states5, 4, 3(predicted)[1]
(only bolded oxidation states are known experimentally)
Ionization energies
(more)		1st: 664.8(estimated)[1] kJ·mol−1
2nd: 1546.7(estimated)[1] kJ·mol−1
3rd: 2378.4(estimated)[1] kJ·mol−1
Atomic radius139(estimated)[1]pm
Covalent radius149(estimated)[2] pm
Miscellanea
CAS registry number53850-35-4
Most stable isotopes
Main article:Isotopes of dubnium
isoNAhalf-lifeDMDE(MeV)DP
262Dbsyn34 s[3][4]67% α8.66,8.45258Lr
33% SF
263Dbsyn27 s[4]56% SF
41% α8.36259Lr
3% ε263mRf
266Dbsyn22 min[4]SF
ε266Rf
267Dbsyn1.2 h[4]SF
268Dbsyn29 h[4]SF
ε268Rf
270Dbsyn23.15 h[5]SF
only isotopes with half-lives over 5 seconds are included here
·r

Angdubnyum (Ininglesdubnium) mao angelementong kimiko satalaang peryodiko nga may simbolo ngaDb ug kaiphan nga atomik 105. Ang dubnyum mao angputhaw nga transisyon.

Ang mga gi basihan niini

[usba |usba ang wikitext]
  1. 1234567Haire, Richard G. (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.{{cite book}}: CS1 maint: ref duplicates default (link)
  2. ↑Chemical Data. Dubnium - Db, Royal Chemical Society
  3. ↑Münzenberg, G.; Gupta, M. (2011). "Production and Identification of Transactinide Elements": 877.doi:10.1007/978-1-4419-0720-2_19.{{cite journal}}:Cite journal requires|journal= (help)
  4. 12345Six New Isotopes of the Superheavy Elements Discovered. Berkeley Lab. News center. October 26, 2010
  5. ↑Oganessian, Yu. Ts.; Abdullin, F. Sh.; Bailey, P. D.; Benker, D. E.; Bennett, M. E.; Dmitriev, S. N.; Ezold, J. G.; Hamilton, J. H.; Henderson, R. A. (2010). "Synthesis of a New Element with Atomic Number Z=117".Physical Review Letters.104.Bibcode:2010PhRvL.104n2502O.doi:10.1103/PhysRevLett.104.142502.PMID 20481935.


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