Astatine
Atomic number:
85
Atomic weight:
(209.9871)
Shells:
2,8,18,32,18,7
Orbitals:
[Xe] 4f14 5d10 6s2 6p5
Melting point:
302°C
Boiling point:
337°C
Covalent radius:
1.45
Å
Atomic volume:
--
cm³/mol
Atomic radius:
1.43
Å
Ionic radius:
--
Å
Electronegativity:
2.2
Oxidation states:
(±1),3,5,7
1st ionization pot.:
9.5
V
2nd ionization pot.:
--
V
3rd ionization pot.:
--
V
Specific heat:
--
J/gK
Heat of fusion:
--
kJ/mol
Heat of vapor.:
--
kJ/mol
Thermal conduct.:
0.017
W/cmK
Electrical conduct.:
--
10^6/cm ohm
Density:
--
g/cm³
Valence:
1,3,5,7
