Argon
Atomic number:
18
Atomic weight:
39.948
Shells:
2,8,8
Orbitals:
[Ne] 3s2 3p6
Melting point:
-189.2°C
Boiling point:
-185.7°C
Covalent radius:
0.98
Å
Atomic volume:
23.9
cm³/mol
Atomic radius:
0.88
Å
Ionic radius:
--
Å
Electronegativity:
0
Oxidation states:
1st ionization pot.:
15.7596
V
2nd ionization pot.:
27.629
V
3rd ionization pot.:
40.74
V
Specific heat:
0.520
J/gK
Heat of fusion:
1.188
kJ/mol
Heat of vapor.:
6.447
kJ/mol
Thermal conduct.:
0.0001772
W/cmK
Electrical conduct.:
--
10^6/cm ohm
Density:
0.0017824
g/cm³
Valence:
0
