Properties of Scandium

Chemical, Physical, Electrical, Thermal and Mechanical Properties of Scandium (Sc)

*Atomic Properties*
Atomic Number	21
Atomic Radius – Goldschmidt	0.160 nm
Atomic Weight	44.9559 amu
Crystal Structure	Hexagonal close packed
Electronic Structure	Ar 3d¹ 4s²
Photo-electric Work Function	3.5 eV
Thermal Neutron Absorption Cross-section	25 Barns
Valences shown	3
Natural Isotope Distribution	Mass No.	%
	45	100
Ionisation Potential	No.	eV
	1	6.54
	2	12.8
	3	24.8
	4	73.5
	5	91.7
	6	111

Thermal Properties
Latent Heat of Evaporation	7293 J g^–¹
Latent Heat of Fusion	357 J g^–¹
Linear Expansion Coefficient @0-100°C	12 x10^–⁶ K^–¹
Specific Heat @ 25°C	557 J K^–¹ kg^–¹
Thermal Conductivity, @0-100°C	15.8 W m^–¹ K^–¹