Actinium
Ac
Actinium
Transition Metal
Atomic number:
89
Atomic weight:
(277.0278)
Shells:
2,8,18,32,18,9,2
Orbitals:
[Rn] 6d1 7s2
Melting point:
1050°C
Boiling point:
3200°C (±300°C)
Covalent radius:
--
Å
Atomic volume:
22.54
cm³/mol
Atomic radius:
--
Å
Ionic radius:
--
Å
Electronegativity:
1.1
Oxidation states:
1st ionization pot.:
5.17
V
2nd ionization pot.:
12.126
V
3rd ionization pot.:
--
V
Specific heat:
--
J/gK
Heat of fusion:
--
kJ/mol
Heat of vapor.:
--
kJ/mol
Thermal conduct.:
0.12
W/cmK
Electrical conduct.:
--
10^6/cm ohm
Density:
10.07
g/cm³
Valence:
--
