Symbol:
Cm
Atomic Number:
96
Atomic Weight:
247.0703
Element Classification:
Discovered By:
G.T.Seaborg, R.A.James, A.Ghiorso
Discovery Date:
1944 (United States)
Name Origin:
Named in honor of Pierre and Marie Curie.
Density (g/cc):
13.51
Melting Point (K):
1340
Boiling Point (K):
n/a
Appearance:
Silvery, malleable, synthetic radioactive metal
Atomic Radius (pm):
299
Atomic Volume (cc/mol):
18.28
Covalent Radius (pm):
n/a
Ionic Radius:
n/a
Specific Heat:
n/a
Fusion Heat (kJ/mol):
n/a
Evaporation Heat (kJ/mol):
n/a
Thermal Conductivity (@25°C W/m K):
n/a
Debye Temperature (K):
n/a
Pauling Negativity Number:
1.3
First Ionizing Energy (kJ/mol):
(580)
Oxidation States:
4, 3
Electronic Configuration:
[Rn] 5f7 6d1 7s2
Lattice Structure:
(n/a)
Lattice Constant:
n/a
Lattice C/A Ratio:
n/a
