Àdàkọ:Infobox nẹ́ọ̀nù

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Nẹ́ọ̀nù, 10Ne
Neon discharge tube.jpg
Nẹ́ọ̀nù
Ìhànsójúcolorless gas exhibiting an orange-red glow when placed in a high voltage electric field
Ìwúwo átọ̀mù Ar, std(Ne)20.1797(6)[1]
Nẹ́ọ̀nù ní orí tábìlì àyè
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
He

Ne

Ar
fluorínìnẹ́ọ̀nùsódíọ̀mù
Nọ́mbà átọ̀mù (Z)10
Ẹgbẹ́group 18 (noble gases)
Àyèàyè 2
Àdìpọ̀Àdìpọ̀-p
Ẹ̀ka ẹ́límẹ́ntì  Ẹ̀fúùfù abíire
Ìtò ẹ̀lẹ́ktrọ́nù[He] 2s2 2p6
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 8
Àwọn ohun ìní ara
Ìfarahàn at STPẹ̀fúùfù
Ìgbà ìyọ́24.56 K ​(-248.59 °C, ​-415.46 °F)
Ígbà ìhó27.07 K ​(-246.08 °C, ​-410.94 °F)
Kíki (at STP)0.9002 g/L
when liquid (at b.p.)1.207[2] g/cm3
Triple point24.5561 K, ​43[3][4] kPa
Critical point44.4 K, 2.76 MPa
Heat of fusion0.335 kJ/mol
Heat of 1.71 kJ/mol
Molar heat capacity5R/2 = 20.786 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 12 13 15 18 21 27
Atomic properties
Oxidation states0
energies
Covalent radius58 pm
Van der Waals radius154 pm
Color lines in a spectral range
Spectral lines of nẹ́ọ̀nù
Other properties
Natural occurrenceprimordial
Crystal structure ​(fcc)
Face-centered cubic crystal structure for nẹ́ọ̀nù
Speed of sound(gas, 0 °C) 435 m/s
Thermal conductivity49.1x10-3  W/(m·K)
Magnetic orderingdiamagnetic[5]
Bulk modulus654 GPa
CAS Number7440-01-9
History
PredictionWilliam Ramsay (1897)
DiscoveryWilliam Ramsay & Morris Travers[6] (1898)
First isolationWilliam Ramsay & Morris Travers[7] (1898)
Main isotopes of nẹ́ọ̀nù
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct
20Ne 90.48% 20Ne is stable with 10 neutrons
21Ne 0.27% 21Ne is stable with 11 neutrons
22Ne 9.25% 22Ne is stable with 12 neutrons
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References

  1. Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry 88 (3): 265–91. doi:10.1515/pac-2015-0305. 
  2. Hammond, C.R. (2000). The Elements, in Handbook of Chemistry and Physics 81st edition. CRC press. p. 19. ISBN 0849304814. http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elements.pdf. 
  3. Preston-Thomas, H. (1990). "The International Temperature Scale of 1990 (ITS-90)". Metrologia 27: 3–10. Bibcode 1990Metro..27....3P. doi:10.1088/0026-1394/27/1/002. http://www.bipm.org/en/publications/its-90.html. 
  4. "Section 4, Properties of the Elements and Inorganic Compounds; Melting, boiling, triple, and critical temperatures of the elements". CRC Handbook of Chemistry and Physics (85th edition ed.). Boca Raton, Florida: CRC Press. 2005. 
  5. Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.
  6. Ramsay, William, Travers, Morris W. (1898). "On the Companions of Argon". Proceedings of the Royal Society of London 63 (1): 437–440. doi:10.1098/rspl.1898.0057. 
  7. "Neon: History". Softciências. Retrieved February 27, 2007.