Ruterfordyo

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Rutherfordium
104Rf
Hf

Rf

(Uph)
lawrenciumrutherfordiumdubnium
Appearance
unknown
General properties
Name, simbolo, kaiphan rutherfordium, Rf, 104
Pronunciation Plantilya:IPAc-en
Plantilya:Respell
Element category puthaw nga transisyon
Group, period, block 47, d
Standard atomic weight [267]
Electron configuration [Rn] 5f14 6d2 7s2[1][2]
2, 8, 18, 32, 32, 10, 2
Electron shells of rutherfordium (2, 8, 18, 32, 32, 10, 2)
History
Discovery Joint Institute for Nuclear Research (1964)
Physical properties
Phase magahi (predicted)[1][2]
Density (near r.t.) 23 (estimated)[1][2] g·cm−3
Melting point 2400 K, 2100 °C, 3800 (estimated)[1][2] °F
Boiling point 5800 K, 5500 °C, 9900 (estimated)[1][2] °F
Atomic properties
Oxidation states 4,[1] 3 (predicted)[2]
(only bolded oxidation states are known experimentally)
Ionization energies
(more)
1st: 579.9 (estimated)[2] kJ·mol−1
2nd: 1389.4 (estimated)[2] kJ·mol−1
3rd: 2296.4 (estimated)[2] kJ·mol−1
Atomic radius 150 (estimated)[2] pm
Covalent radius 157 (estimated)[1] pm
Miscellanea
CAS registry number 53850-36-5
Most stable isotopes
Main article: Isotopes of rutherfordium
iso NA half-life DM DE (MeV) DP
261Rf syn 70 s[3] >80% α 8.28 257No
<15% ε 261Lr
<10% SF
263Rf syn 15 min[3] <100% SF
~30% α 7.90 ? 259No
265Rf syn 2.5 min[4] SF
266Rf? syn 10? h SF?/α?
267Rf syn 1.3 h[3] SF
268Rf? syn 6? h SF?/α?
only isotopes with half-lives over 5 seconds are included here

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Ang ruterfordyo (Iningles rutherfordium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Rf ug kaiphan nga atomik 104. Ang ruterfordyo mao ang puthaw nga transisyon.

Ang mga gi basihan niini[usba | edit source]

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Chemical Data. Rutherfordium - Rf, Royal Chemical Society
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 Haire, Richard G. (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. 
  3. 3.0 3.1 3.2 Plantilya:Citeweb
  4. Ellison, P.; Gregorich, K.; Berryman, J.; Bleuel, D.; Clark, R.; Dragojević, I.; Dvorak, J.; Fallon, P.; et al. (2010). "New Superheavy Element Isotopes: 242Pu(48Ca,5n)285114". Physical Review Letters 105. doi:10.1103/PhysRevLett.105.182701. Bibcode2010PhRvL.105r2701E. 


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