Template:Infobox neon

Neon,  10Ne
Template:Infobox element/symbol-to-top-image-alt
General properties
PronunciationTemplate:Infobox element/pronunciation
Appearancecolorless gas exhibiting an orange-red glow when placed in an electric field
Standard atomic weight (Ar, standard)Template:Infobox element/standard atomic weight
Mass numberTemplate:Infobox element/symbol-to-most-stable-isotope (most stable isotope)
Neon in the periodic table
Template:Infobox element/periodic table
Atomic number (Z)10
GroupTemplate:Infobox element/group
Periodperiod 2
Blockp-block
Element categoryTemplate:Infobox element/category format
Electron configuration[He] 2s2 2p6
Electrons per shell
2, 8
Physical properties
Phase at STPgas
Melting point24.56 K ​(−248.59 °C, ​−415.46 °F)
Boiling point27.104 K ​(−246.046 °C, ​−410.883 °F)
Density (at STP)0.9002 g/L
when liquid (at b.p.)1.207 g/cm3[1]
Triple point24.556 K, ​43.37 kPa[2][3]
Critical point44.4918 K, 2.7686 MPa[3]
Heat of fusion0.335 kJ/mol
[[Enthalpy of vaporization|Heat of Template:Engvar]]1.71 kJ/mol
Molar heat capacity20.79[4] J/(mol·K)
[[Vapor pressure|Template:Engvar pressure]]
Atomic properties
Oxidation statesTemplate:Infobox element/symbol-to-oxidation-state
[[Ionization energy|Template:Engvar energies]]
  • 1st: 2080.7 kJ/mol
  • 2nd: 3952.3 kJ/mol
  • 3rd: 6122 kJ/mol
  • (more)
Covalent radius58 pm
Van der Waals radius154 pm
Template:Infobox element/spectral lines
Other properties
Crystal structureTemplate:Infobox element/crystal structure
Speed of sound435 m/s (gas, at 0 °C)
Thermal conductivity49.1×10−3 W/(m·K)
Magnetic orderingdiamagnetic[5]
Magnetic susceptibility−6.74·10−6 cm3/mol (298 K)[6]
Bulk modulus654 GPa
CAS Number7440-01-9
History
PredictionWilliam Ramsay (1897)
Discovery and first isolationWilliam Ramsay & Morris Travers[7][8] (1898)
Main isotopes of neon
Template:Infobox element/isotopes table
| references

Template:Infobox element/element navigation Template:Template reference list Four of these are named references. They may be cited in the containing article as

  • <ref name="CIAAW2016" /> for the source Atomic weights of the elements 2013 (from subtemplates used by {{Infobox element}})
  • <ref name="CRC" /> for the source by Hammond
  • <ref name="ITS90" /> for the source by Preston-Thomas
  • <ref name="b92" /> for the source by Haynes

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  1. Hammond, C. R. (2000). The Elements, in Handbook of Chemistry and Physics 81st edition (PDF). CRC press. p. 19. ISBN 0849304814.
  2. 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.
  3. 3.0 3.1 Template:RubberBible92nd
  4. Shuen-Chen Hwang, Robert D. Lein, Daniel A. Morgan (2005). "Noble Gases". Kirk Othmer Encyclopedia of Chemical Technology. Wiley. pp. 343–383. doi:10.1002/0471238961.0701190508230114.a01.
  5. Magnetic susceptibility of the elements and inorganic compounds, in Template:RubberBible86th
  6. Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.
  7. 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.
  8. "Neon: History". Softciências. Retrieved 2007-02-27.