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mineralogy elements Ar Argon

Ar - Argon - NO NOBLE GAS METAL

39.948
18
Ar
[Ne] 3s2 3p6
2
8
8
0
15.7596
Synthetic
Radioactive
Liquid
Gaseous
Argon Electronic configuration diagram
Electronic configuration diagram

Name Argon
Number 18
Atomic 39.948
Symbol Ar
Fusion -189.4
Boiling -185.9
Density 0.0017837
Period 3
Group 18
Discovery 1894 Rayleigh and Ramsay
Abundance 3.5
Radius 0.88
Electronegativity 0
Ionization 15.7596
Number of isotopes 8
Electronic configuration [Ne] 3s2 3p6
Oxidation states
Electron by energy level 2,8,8