Electronic data		Thermal data		Steric data
Shells: 2,8 Orbitals: [He] 2s2 2p6 Electronegativity: 4.84, -- 1. Ionization potential: 21.5645 eV 2. Ionization potential: 40.962 eV 3. Ionization potential: 63.45 eV Oxidation states: 0 Electrical conductivity: --		Melting point: -248.67 °C Boiling point: -246.048 °C Specific heat: 0.904 J/gK Heat of fusion: 0.3317 kJ/mol Heat of vaporization: 1.7326 kJ/mol Thermal conductivity: 0.000493 W/cmK		Atomic radius: 0.51 Å Ionic radius: -- Å () Covalent radius: 0.71 Å Atomic volume: 17.3 cm³/mol Density (293 K): 0.0008999 g/cm³ Crystal structure: Cubic: Face centered

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Nuclide	Abundance [%]	Mass	Spin	Halflife	Decay mode	Decay tree
20Ne	90.92	19.9924	0	--	stable	--
21Ne	0.257	20.9938	3/2	--	stable	--
22Ne	8.82	21.9914	0	--	stable	--

Legend

Name origin:	Greek: neos (new)
Description:	Colorless, odorless, tasteless inert gas. Fourth most abundant element in the universe and fifth most abundant in the earth's atmosphere (18.18 ppm).
Discovered by:	Sir William Ramsey, M.W. Travers
Year:	1898
Place:	England
Sources:	Obtained from production of liquid air as a byproduct of producing liquid oxygen and nitrogen.
Use(s):	Primarily for lighting.