Roentgenium

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Roentgenium,  111Rg
Sifat umum
Nama, simbol roentgenium, Rg
Pengucapan Dengarkani/rʌntˈɡɛniəm/ atau /rɛntˈɡɛniəm/
runt-GEN-ee-əm atau rent-GEN-ee-əm
Penampilan keperakan (prediksi)[1]
Roentgenium di tabel periodik
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Litium (alkali metal)
Berilium (alkaline earth metal)
Boron (metalloid)
Karbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oksigen (diatomic nonmetal)
Fluor (diatomic nonmetal)
Neon (noble gas)
Natrium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silikon (metalloid)
Fosfor (polyatomic nonmetal)
Belerang (polyatomic nonmetal)
Klor (diatomic nonmetal)
Argon (noble gas)
Kalium (alkali metal)
Kalsium (alkaline earth metal)
Skandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Kromium (transition metal)
Mangan (transition metal)
Besi (transition metal)
Kobalt (transition metal)
Nikel (transition metal)
Tembaga (transition metal)
Seng (transition metal)
Galium (post-transition metal)
Germanium (metalloid)
Arsenik (metalloid)
Selenium (polyatomic nonmetal)
Bromin (diatomic nonmetal)
Kripton (noble gas)
Rubidium (alkali metal)
Stronsium (alkaline earth metal)
Itrium (transition metal)
Zirkonium (transition metal)
Niobium (transition metal)
Molibdenum (transition metal)
Teknesium (transition metal)
Rutenium (transition metal)
Rodium (transition metal)
Paladium (transition metal)
Perak (transition metal)
Kadmium (transition metal)
Indium (post-transition metal)
Timah (post-transition metal)
Antimon (metalloid)
Telurium (metalloid)
Yodium (diatomic nonmetal)
Xenon (noble gas)
Sesium (alkali metal)
Barium (alkaline earth metal)
Lantanum (lanthanide)
Serium (lanthanide)
Praseodimium (lanthanide)
Neodimium (lanthanide)
Prometium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Disprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Tulium (lanthanide)
Iterbium (lanthanide)
Lutesium (lanthanide)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Renium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Emas (transition metal)
Raksa (transition metal)
Talium (post-transition metal)
Timbal (post-transition metal)
Bismut (post-transition metal)
Polonium (post-transition metal)
Astatin (metalloid)
Radon (noble gas)
Fransium (alkali metal)
Radium (alkaline earth metal)
Aktinium (actinide)
Torium (actinide)
Protaktinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Amerisium (actinide)
Kurium (actinide)
Berkelium (actinide)
Kalifornium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrensium (actinide)
Ruterfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hasium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Kopernisium (transition metal)
Nihonium (unknown chemical properties)
Flerovium (post-transition metal)
Moskovium (unknown chemical properties)
Livermorium (unknown chemical properties)
Tenesin (unknown chemical properties)
Oganeson (unknown chemical properties)
Au

Rg

(Uhp)
darmstadtiumroentgeniumkopernisium
Nomor atom (Z) 111
Golongan, blok golongan 11, blok-d
Periode periode 7
Kategori unsur unknown, mungkin logam transisi
Massa atom standar (Ar) [282]
Konfigurasi elektron [Rn] 5f14 6d9 7s2 (prediksi)[1][2]
per kulit
2, 8, 18, 32, 32, 17, 2 (prediksi)
Sifat fisika
Fase solid (prediksi)[3]
Kepadatan mendekati s.k. 28.7 g/cm3 (prediksi)[2]
Sifat atom
Bilangan oksidasi 5, 3, 1, −1(prediksi)[2][4]
Energi ionisasi ke-1: 1022.7 kJ/mol
ke-2: 2074.4 kJ/mol
ke-3: 3077.9 kJ/mol
(artikel) (semua perkiraan)[2]
Jari-jari atom empiris: 138 pm (prediksi)[2][4]
Jari-jari kovalen 121 pm (perkiraan)[5]
Lain-lain
Struktur kristal kubus acuan badan (bcc)
Struktur kristal Body-centered cubic untuk roentgenium

(prediksi)[3]
Nomor CAS 54386-24-2
Sejarah
Penamaan after Wilhelm Röntgen
Penemuan Gesellschaft für Schwerionenforschung (1994)
Isotop roentgenium terstabil
iso NA waktu paruh DM DE (MeV) DP
282Rg[6] syn 2.1+1.4−0.6 min α 9.00 278Mt
281Rg[7][8] syn 17+6−3 s SF (90%)
α (10%) 277Mt
280Rg syn 3.6 s α 9.75 276Mt
279Rg syn 0.17 s α 10.37 275Mt
| referensi | di Wikidata

Roentgenium Tentang suara ini pronunciation  (pengucapan: /rɛntˈgɛniəm/, /rʌntˈdʒɛniəm/)[9] adalah unsur kimia sintetik dalam sistem periodik unsur yang memiliki lambang Rg dan nomor atom 111.

Pranala luar[sunting | sunting sumber]

Referensi[sunting | sunting sumber]

  1. ^ a b Turler, A. (2004). "Gas Phase Chemistry of Superheavy Elements" (PDF). Journal of Nuclear and Radiochemical Sciences 5 (2): R19–R25. 
  2. ^ a b c d e Hoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". Di 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. ^ a b 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. ^ a b 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. Diakses tanggal 4 October 2013. 
  5. ^ Chemical Data. Roentgenium - Rg, Royal Chemical Society
  6. ^ Khuyagbaatar, J.; Yakushev, A.; Düllmann, Ch. E. et al. (2014). "48Ca+249Bk Fusion Reaction Leading to Element Z=117: Long-Lived α-Decaying 270Db and Discovery of 266Lr". Physical Review Letters 112 (17): 172501. doi:10.1103/PhysRevLett.112.172501. 
  7. ^ Oganessian, Yuri Ts.; Abdullin, F. Sh.; Alexander, C. et al. (2013-05-30). "Experimental studies of the 249Bk + 48Ca reaction including decay properties and excitation function for isotopes of element 117, and discovery of the new isotope 277Mt". Physical Review C (American Physical Society) 87 (054621). Bibcode:2013PhRvC..87e4621O. doi:10.1103/PhysRevC.87.054621. 
  8. ^ Oganessian, Yu. Ts. et al. (2013). "Experimental studies of the 249Bk + 48Ca reaction including decay properties and excitation function for isotopes of element 117, and discovery of the new isotope 277Mt". Physical Review C 87 (5): 054621. Bibcode:2013PhRvC..87e4621O. doi:10.1103/PhysRevC.87.054621. 
  9. ^ Roentgenium - Definitions from Dictionary.com