Properties

CAS Number7440-01-9
PubChem CID23935
Atomic Radius38
Atomic Volume16.7
Atomic Weight20.18
Blockp
Boiling Point-246.08
Bulk Modulus
CategoryNoble gases
Crystal StructureFace Centered Cubic
Color
Covalent Radius58
Density0.001
Electrical Resistivity
Electron Configuration[He] 2s2 2p6
Electrons per shell2, 8
Electronegativity-
Electrons10
Group18
Heat of Fusion0.34
Heat of Vaporization1.75
Ionization Potential21.564
Magnetic Ordering
Magnetic Susceptibility
Mass20.18
Mass Number10
Melting Point-248.59
NameNeon
Neutrons10
Atomic Number20
Oxidation States0
Period2
PhaseGas
Poisson Ratio
Protons10
Shear Modulus
Specific Heat Capacity1.03
SymbolNe
Thermal Conductivity0
Van der Waals radius
Young's Modulus
Abundance
Abundance in Earth's crust3×10-7%
Abundance in Universe0.13%
Ne Neon 10 20.1797 18 2 p 10 -248.0 -248.7 [He] 2s2 2p6 2 8 0.0009 3E-7% Colorless Cubic: Face centered 4.787 {"1":"2080.7","2":"3952.3","3":"6122","4":"9371","5":"12177","6":"15238","7":"19999.0","8":"23069.5","9":"115379.5","10":"131432"} 2088 0 71 0 0.51 16.9 0.34 1.77 1.03 0.0493 0 Gas, Diamagnetic, NobleGas, Nonmetal, Stable, Natural NEE-on Colorless, odorless, tasteless inert gas. Fourth most abundant element in the universe and fifth most abundant in the earth's atmosphere (18.18 ppm). Primarily for lighting. Obtained from production of liquid air as a byproduct of producing liquid oxygen and nitrogen. wzv0pb7mzaw Neon
Hassium was first synthesized in 1984 by a German research team led by Peter Armbruster and Gottfried Münzenberg at the Institute for Heavy Ion Research (Gesellschaft für Schwerionenforschung) in Darmstadt.

The team bombarded a target of lead-208 with accelerated nuclei of iron-58 to produce 3 atoms of the isotope hassium-265. From the Latin word Hassias meaning Hess, the German state 10 1898 Sir William Ramsay, Morris W. Travers London, England From the Greek word "neon" meaning "new"

Isotopes of Hassium

Standard Atomic Weight

20.1797(6)

Stable Isotopes

20Ne 21Ne 22Ne

Unstable Isotopes

16Ne 17Ne 18Ne 19Ne 23Ne 24Ne 25Ne 26Ne 27Ne 28Ne 29Ne 30Ne 31Ne 32Ne 33Ne 34Ne

Hassium is harmful due to its radioactivity
More than 100 atoms of hassium have been synthesized to date
Hassium is used for scientific research purposes only.