Neon

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Neon
10Ne
He

Ne

Ar
fluorineneonsodium
Panagway
colorless gas exhibiting an orange-red glow when placed in a high voltage electric field

Neon gas in a discharge tube, so-called neon light.

Spectral lines of neon in the visible region
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan neon, Ne, 10
Paglitok /ˈnɒn/
Kategoriyang elemento gas nga halangdon
Group, period, block 182, p
Gibug-aton sa atomo 20.1797(6)
Kontorno sa elektron [He] 2s2 2p6
2, 8
Electron shells of neon (2, 8)
History
Prediction William Ramsay (1897)
Pagkadiskobre William Ramsay & Morris Travers[1] (1898)
First isolation William Ramsay & Morris Travers[2] (1898)
Physical properties
Phase gas
Density (0 °C, 101.325 kPa)
0.9002 g/L
Liquid density at b.p. 1.207[3] g·cm−3
Melting point 24.56 K, -248.59 °C, -415.46 °F
Boiling point 27.07 K, -246.08 °C, -410.94 °F
Triple point 24.5561 K (-249°C), 43[4][5] kPa
Critical point 44.4 K, 2.76 MPa
Heat of fusion 0.335 kJ·mol−1
Heat of vaporization 1.71 kJ·mol−1
Molar heat capacity 5R/2 = 20.786 J·mol−1·K−1
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
Ionization energies
(more)
1st: 2080.7 kJ·mol−1
2nd: 3952.3 kJ·mol−1
3rd: 6122 kJ·mol−1
Covalent radius 58 pm
Van der Waals radius 154 pm
Miscellanea
Crystal structure face-centered cubic
Neon has a face-centered cubic crystal structure
Magnetic ordering diamagnetic[6]
Thermal conductivity 49.1x10-3  W·m−1·K−1
Speed of sound (gas, 0 °C) 435 m·s−1
Bulk modulus 654 GPa
CAS registry number 7440-01-9
Most stable isotopes
Main article: Isotopes of neon
iso NA half-life DM DE (MeV) DP
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
· r

Ang neon mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Ne ug kaiphan nga atomik 10. Ang neon mao ang gas nga halangdon.

Ang mga gi basihan niini[usba | usba ang wikitext]

  1. 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. 
  2. Neon: History. Softciências. Retrieved on February 27, 2007.
  3. 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. 
  4. Preston-Thomas, H. (1990). "The International Temperature Scale of 1990 (ITS-90)". Metrologia 27: 3–10. doi:10.1088/0026-1394/27/1/002. Bibcode1990Metro..27....3P, http://www.bipm.org/en/publications/its-90.html. 
  5. "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. 
  6. Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.


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