Periodic table

 

 

Atomic number:10

Group numbers:18

Period:2

Electronic configuration:[He] 2s² 2p⁶

Formal oxidation number:0

Electronegativities:-

Atomic radius / pm:154

Relative atomic mass:20.1797 ± 0.0006

 

Neon was discovered by Sir William Ramsay and Morris William Travers (GB) in 1898. The origin of the name comes from the Greek word neon meaning new. It is a colourless, odourless inert gas. It doesn't react, not even with fluorine. Neon is the fourth most abundant element in the universe. Neon is obtained by liquefaction of air and separated from the other gases by fractional distillation. The largest use for neon gas is in advertising signs.

PHYSICAL PROPERTIES

Density / g dm^-3:1444 (solid, m.p.)

 1207.3 (liquid, b.p.)

 0.89994 (gas, 273 K)

Molar volume / cm³mol^-1:13.97 (solid, m.p.)

 16.71 (liquid, b.p.)

 22423.38 (gas, 273 K)

Electrical resistivity / μΩcm:- (20 °C)

THERMAL PROPERTIES

Thermal conductivity / W m^-1K^-1:0.0491

Melting point / °C:-248.59

Boiling point / °C:-246.08

Heat of fusion / kJ mol^-1:0.324

Heat of vaporization / kJ mol^-1:1.736

Heat of atomization / kJ mol^-1:0

IONIZATION ENERGIES

First ionization energy / kJ mol^-1:2080.68

Second ionization energy / kJ mol^-1:3952.38

Third ionization energy / kJ mol^-1:6122.04

ABUNDANCE OF ELEMENTS

in the atmosphere / ppm:18

in the Earth's crust / ppm:0.00007

in the oceans / ppm:0.04

CRYSTALLOGRAPHIC DATA

ISOTOPES

REDUCTION POTENTIALS

 

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Citing this page:

Generalic, Eni. "Neon." EniG. Periodic Table of the Elements. 16 May 2013. KTF-Split. {Date of access}. <http://www.periodni.com/ne.html>.