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????? - ?????????? ?????????????

?????

??????????
????????????? ?????????????
?????,  00 Ne
?????
Appearance ????????????????????????????????????????????????????????
Standard atomic weight A r °(Ne)
  • 20.1797 ± 0.0006
  • 20.180 ± 0.001  (abridged) [1]
????? in the periodic table
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
???????? ← ????? → ???????
Group group 18 (noble gases)
Period period 2
Block   p-block
Electron configuration [ He ] 2s 2 2p 6
Electrons per shell 2, 8
Physical properties
Phase at  STP ????
Melting point 24.56  K ​(-248.59 °C, ​-415.46 °F)
Boiling point 27.104 K ​(-246.046 °C, ​-410.883 °F)
Density (at STP) 0.9002 g/L
when liquid (at  b.p. ) 1.207 [2]  g/cm 3
Triple point 24.556 K, ​43.37 [3] [4]  kPa
Critical point 44.4918 K, 2.7686 [4]  MPa
Heat of fusion 0.335  kJ/mol
Heat of vaporization 1.71 kJ/mol
Molar heat capacity 5 R /2 = 20.786 J/(mol·K)
Vapor pressure
P   (Pa) 1 10 100 1 k 10 k 100 k
at  T   (K) 12 13 15 18 21 27
Atomic properties
Oxidation states 0
Covalent radius 58   pm
Van der Waals radius 154  pm
Color lines in a spectral range
Color lines in a spectral range
Spectral lines of ?????
Other properties
Natural occurrence primordial
Crystal structure ​???????????????????
Speed of sound (????, 0 °C) 435 m/s
Thermal conductivity 49.1 × 10 −3   W/(m?K)
Magnetic ordering ???????????? [5]
Bulk modulus 654 GPa
CAS Number 7440-01-9
History
Prediction ???????? ??????? (1897)
Discovery ???????? ??????? & ??????? ???????? [6] (1898)
First isolation ???????? ??????? & ??????? ???????? [7] (1898)
Isotopes of ?????
Template:infobox ????? isotopes does not exist
หมวดหมู่  Category: ?????
| references

????? ( ?????? : neon ) ???? ???? ?? ????????? ?????????????? Ne ??? ???????? 10 ????????? ?????????? ????????????????? 8 ???????????? ????????????????????????????? ?????????????????????????????????????????? ? ?????????????????????????????????????????? (vacuum discharge tube) ??? ??????? ???????????????????????????? (??????? 55,000 ????) ???????????????????????????????????????????????????????????????????? ? ???

???????? [ ??? ]

????????????? Sir William Ramsay ??? M.W. Travers ??????????? ?????????????????????? ???? ?.?. 1898 ????????????????????????????????????? ? ??????????????????????????????? ??????????????????????????????????????????????????????????????????????????????????????????????????????????????? ????? Neon ??????????? neos ?????????????? new ?????????? ????????????????????????????????????????????????????

?????????????? [ ??? ]

??????????????????????????????????????????????????????? ???????????????????????? ??????????????????????????????????????????????????? ???????????? (fluorescence lamp) ?????????? (gaseous conduction lamp) ??????????????????????????????????????? (??????????? mm Hg) ???????????????????? ???????????????????????????????????????????????????????? ???? ??????? ??????????????? ??????????????????????????????????????????????????????? ????????????????? Geiger-Muller ???????????????????????????????????? ?????????????????????????????????? ??????????????????????????? Ionization chambers, proportional counters, neutron fission counter, scintillation counters ??? cosmic ray counters ????????????? ??????? ??????? ???????????????????????????????????????? ?????????????????????????? ??????????? (gas lasers) ????????????????????????????? ???????????????????????????????????????????????????? ?????????????????????????????????? ????????????????????????????????????????????????? ??????????????????????????????????????????? ????????????????????????????????????????????? ????????????????????????????????????????????????

??????????? [ ??? ]

?????????????????????????????????????????

??????????? [ ??? ]

  • ????????????? 0.0018 ??????????????????????????????
  • ?????????????????????????????????????????????? ???????????????????????????????????? ???????????????????????
  • ????????????????????????????????????? [9]

??????????????? ???????????? [ ??? ]

??????? ???????? ?????????????????????????? (%)
20Ne 19.992 90.48
21Ne 20.994 0.27
22Ne 21.991 9.25

[10]

??????? [ ??? ]

  1. ↑ "Standard Atomic Weights: Neon" . CIAAW . 1985.
  2. ↑ Hammond, C.R. (2000). The Elements, in Handbook of Chemistry and Physics 81st edition (PDF) . CRC press. p. 19. ISBN   0849304814 .
  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 .
  4. ↑ 4.0 4.1 Haynes, William M., ?.?. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). CRC Press . p. 4.122. ISBN   1439855110 .
  5. ↑ Magnetic susceptibility of the elements and inorganic compounds , in Lide, D. R., ?.?. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN   0-8493-0486-5 .
  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 . {{ cite journal }} : CS1 maint: multiple names: authors list ( ????? )
  7. ↑ "Neon: History" . Softciencias . ??????????? February 27, 2007 .
  8. ↑ "HNe" . NIST Chemistry WebBook . National Institute of Standards and Technology . ??????????? 23 January 2013 .
  9. ↑ http://www.webelements.com/neon/uses.html
  10. ↑ http://www.rsc.org/periodic-table/element/10/neon
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