Symbol:
Sc
Atomic Number:
21
Atomic Weight:
44.95591
Element Classification:
Discovered By:
Lars Nilson
Discovery Date:
1879 (Sweden)
Name Origin:
Latin: Scandia, Scandinavia.
Density (g/cc):
2.99
Melting Point (K):
1814
Boiling Point (K):
3104
Appearance:
Fairly soft, silvery-white metal
Atomic Radius (pm):
162
Atomic Volume (cc/mol):
15.0
Covalent Radius (pm):
144
Ionic Radius:
72.3 (+3e)
Specific Heat:
0.556
Fusion Heat (kJ/mol):
15.8
Evaporation Heat (kJ/mol):
332.7
Thermal Conductivity (@25°C W/m K):
15.8
Debye Temperature (K):
n/a
Pauling Negativity Number:
1.36
First Ionizing Energy (kJ/mol):
630.8
Oxidation States:
3
Electronic Configuration:
[Ar] 3d1 4s2
Lattice Structure:
Hexagonal(HEX)
Lattice Constant:
3.310
Lattice C/A Ratio:
1.594
