Periodic table of the elements
CalciumScandiumTitanium
21
Sc
Scandium
44.955912
2
8
9
2
21
Sc
Scandium
44.955912
2
8
9
2
General
NameScandium
SymbolSc
Number21
Chemical seriesTransition elements
Group / Period3 / 4
Blockd-block
CAS registry number7440-20-2

Physical properties
Statesolid
Density2.985 g/cm3
Melting point1814 K (1541°C, 2806°F)
Boiling point3109 K (2836°C, 5137°F)
Critical point

Atomic properties
Atomic Weight44.955912 g/mol
Crystal structurehexagonal
Electronegativity1.36
Atomic radius160 pm
Atomic radius (calculated)184 pm
Electron configuration[Ar] 3d1 4s2
Electrons per shell2, 8, 9, 2
Number of protons21
Number of neutrons24

Other languages
SpanishEscandio
PortugueseEscândio
FrenchScandium
GermanScandium
ItalianScandio
RussianСкандий
PolishSkand
Chinese
Arabicسكانديوم
TurkishSkandiyum
DutchScandium


Periodic table of the elements
CalciumScandiumTitanium