Chemicool

Ne

10

20.17
Neon
General | States | Energies | Oxidation & Electrons |Appearance & Characteristics
Reactions | Other Forms |Radius | Conductivity | Abundance
Encyclopedia Britannica articles

General

Name Neon Symbol Ne
atomic number 10 Atomic weight 20.17
Density @ 293 K 0.0009 g/cm3 Atomic volume 16.7 cm3/mol
Group Noble Gas discovered 1898

States

state (s, l, g) g
melting point 24.53 K boiling point 27.1 K
Heat of fusion 0.3317 kJ/mol Heat of vaporization 1.7326 kJ/mol
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Energies

1st ionization energy 2080.6 kJ/mole electronegativity
2nd ionization energy 3952.2 kJ/mole electron affinity kJ/mole
3rd ionization energy 6121.9 kJ/mole Specific heat 0.904 J/gK
heat atomization 0 kJ/mole atoms

Oxidation & Electrons

Shells 2,8 electron configuration [He] 2s2 2p6
minimum oxidation number 0 maximum oxidation number 0
min. common oxidation no. 0 max. common oxidation no. 0
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Appearance & Characteristics

structure fcc: face-centered cubic color colorless
uses Neon signs toxicity no
hardness mohs characteristics Inert, dens

Reactions

reaction with air none reaction with 6M HCl none
reaction with 6M HCl none reaction with 15M HNO3 none
reaction with 6M NaOH none
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Other Forms

number of isotopes 3 hydride(s) none
oxide(s) none chloride(s) none

Radius

ionic radius (2- ion) pm ionic radius (1- ion) pm
atomic radius 71 pm ionic radius (1+ ion) pm
ionic radius (2+ ion) pm ionic radius (3+ ion) pm
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Conductivity

thermal conductivity 0.05 J/m-sec-deg electrical conductivity 0 1/mohm-cm
polarizability 0.396 A^3

Abundance

source Air rel. abund. solar system 6.537 log
abundance earth's crust -2.3 log cost, pure 33 $/100g
cost, bulk $/100g
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