Symbol:
Ac
Atomic Number:
89
Atomic Weight:
227.0278
Element Classification:
Discovered By:
Andre-Louis Debierne
Discovery Date:
1899 (France)
Name Origin:
Greek: akis, aktinos (ray).
Density (g/cc):
n/a
Melting Point (K):
1320
Boiling Point (K):
3470
Appearance:
Heavy, Silvery-white metal that is very radioactive
Atomic Radius (pm):
188
Atomic Volume (cc/mol):
22.54
Covalent Radius (pm):
n/a
Ionic Radius:
118 (+3e)
Specific Heat:
n/a
Fusion Heat (kJ/mol):
(10.5)
Evaporation Heat (kJ/mol):
(292.9)
Thermal Conductivity (@25°C W/m K):
n/a
Debye Temperature (K):
n/a
Pauling Negativity Number:
1.1
First Ionizing Energy (kJ/mol):
665.5
Oxidation States:
3
Electronic Configuration:
[Rn] 6d1 7s2
Lattice Structure:
Face-Centered Cubic(FCC)
Lattice Constant:
5.310
Lattice C/A Ratio:
n/a
