Nobelyo

Nobelium, 102No
Nobelium
Bigkas
Bilang na pangmasa[259]
Nobelium sa talahanayang peryodiko
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
Yb

No

mendeleviumnobeliumlawrencium
Atomikong bilang (Z)102
Groupn/a
Period7
Block  f-block
Electron configuration[Rn] 5f14 7s2
Electrons per shell2, 8, 18, 32, 32, 8, 2
Physical properties
Phase at STPsolid (predicted)[1]
Melting point1100 K ​(800 °C, ​1500 °F) (predicted)[1]
Density (near r.t.)9.9(4) g/cm3 (predicted)[2][a]
Atomic properties
Oxidation states+2, +3
ElectronegativityPauling scale: 1.3 (predicted)[3]
Ionization energies
  • 1st: 639[4] kJ/mol
  • 2nd: 1254.3 kJ/mol
  • 3rd: 2605.1 kJ/mol
  • (all but first estimated)
Other properties
Natural occurrencesintetiko
Crystal structureface-centered cubic (fcc)
Face-centered cubic crystal structure for nobelium

(predicted)[2]
CAS Number10028-14-5
History
Namingafter Alfred Nobel
DiscoveryJoint Institute for Nuclear Research (1965)
Isotopes of nobelium
Main isotopes[5] Decay
abun­dance half-life (t1/2) mode pro­duct
253No synth 1.6 min α55% 249Fm
β+45% 253Md
254No synth 51 s α90% 250Fm
β+10% 254Md
255No synth 3.5 min α61% 251Fm
β+39% 255Md
257No synth 25 s α99% 253Fm
β+1% 257Md
259No synth 58 min α75% 255Fm
ε25% 259Md
SF<10%
Kategorya Kategorya: Nobelium
| references

Ang nobelyo o nobelyum (Kastila: nobelio, Ingles: nobelium, may sagisag na No, atomikong bilang na 102, isotopikong mga masang 252, 253, 254, 255, at 256, mga kalahating-buhay na 4.5, 95, 75, 180, at 8 mga segundo) ay isang sintetikong elementong radyoaktibo at trans-uranikong matatagpuan sa mga seryeng aktinido. Unang nakilala ito nang tama ng mga siyentipiko noong 1956 o 1958.[6] Natuklasan ito nina A Ghiorso, T Sikkeland, J Walton at GT Seaborg. Natuklasan ito sa Laboratoryo ng mga Reaksiyong Nuklear ng Flerov (Flerov Laboratory of Nuclear Reactions sa Ingles) sa Dubna, Rusya. Kaunti lamang ang nalalaman ang tungkol sa elementong ito ngunit may limitadong bilang mga eksperimentong kimikal ang nagpakitang bumubuo ito ng matatag na dibalenteng iyono (divalent ion), maging ng prediktado o inaasahang tribalenteng iyono (trivalent ion) na may kaugnayan sa pag-iral nito bilang isa sa mga aktinoyd. Nagbuhat ang pangalang nobelyo at nobelyum mula sa Suwisong kimikong si Alfred Nobel.

Mga sanggunian

  1. 1.0 1.1 Lide, David R., pat. (2003). CRC Handbook of Chemistry and Physics (ika-84th (na) edisyon). Boca Raton (FL): CRC Press. ISBN 0-8493-0484-9.
  2. 2.0 2.1 Fournier, Jean-Marc (1976). "Bonding and the electronic structure of the actinide metals". Journal of Physics and Chemistry of Solids. 37 (2): 235–244. Bibcode:1976JPCS...37..235F. doi:10.1016/0022-3697(76)90167-0.
  3. Dean, John A., pat. (1999). Lange's Handbook of Chemistry (ika-15 (na) edisyon). McGraw-Hill. Section 4; Table 4.5, Electronegativities of the Elements.
  4. Sato, Tetsuya K.; Asai, Masato; Borschevsky, Anastasia; Beerwerth, Randolf; Kaneya, Yusuke; Makii, Hiroyuki; Mitsukai, Akina; Nagame, Yuichiro; Osa, Akihiko; Toyoshima, Atsushi; Tsukada, Kazuki; Sakama, Minoru; Takeda, Shinsaku; Ooe, Kazuhiro; Sato, Daisuke; Shigekawa, Yudai; Ichikawa, Shin-ichi; Düllmann, Christoph E.; Grund, Jessica; Renisch, Dennis; Kratz, Jens V.; Schädel, Matthias; Eliav, Ephraim; Kaldor, Uzi; Fritzsche, Stephan; Stora, Thierry (25 October 2018). "First Ionization Potentials of Fm, Md, No, and Lr: Verification of Filling-Up of 5f Electrons and Confirmation of the Actinide Series". Journal of the American Chemical Society. 140 (44): 14609–14613. doi:10.1021/jacs.8b09068.
  5. Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.
  6. Gaboy, Luciano L. Nobelium, nobelyum, nobelyo, No; ayon sa sangguniang ito, natuklasan ito noong 1958 - Gabby's Dictionary: Praktikal na Talahuluganang Ingles-Filipino ni Gabby/Gabby's Practical English-Filipino Dictionary, GabbyDictionary.com.


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