Scandium
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
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
15.8
Evaporation Heat(kj/mol)
332.7
Thermal Conductivity(@25°C W/m K)
15.8
Debye Temperature
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
