Thallium
Atomic number:
81
Atomic weight:
204.3833
Shells:
2,8,18,32,18,3
Orbitals:
[Xe] 4f14 5d10 6s2 6p1
Melting point:
303.5°C
Boiling point:
1457°C ±10°C
Covalent radius:
1.48
Å
Atomic volume:
17.2
cm³/mol
Atomic radius:
2.08
Å
Ionic radius:
1.59 (+1)
Å
Electronegativity:
2.04
Oxidation states:
3,(1)
1st ionization pot.:
6.1083
V
2nd ionization pot.:
20.428
V
3rd ionization pot.:
29.829
V
Specific heat:
0.13
J/gK
Heat of fusion:
4.142
kJ/mol
Heat of vapor.:
164.10
kJ/mol
Thermal conduct.:
0.461
W/cmK
Electrical conduct.:
0.0617
10^6/cm ohm
Density:
11.85
g/cm³
Valence:
1,3
