21 Sc Scandium 44,956 u

Scandium

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Periode
4
Gruppe
3
Block
d-Block
Phase (STP)
Solid

Scandium is a soft, silvery transition metal used in aerospace alloys. It is relatively rare and was predicted by Mendeleev before its discovery.

Erscheinungsbild: Silvery white

Physikalische Eigenschaften

Atommasse 44.956 u
Dichte 2.985 g/cm³
Schmelzpunkt 1540.8 °C
Siedepunkt 2835.8 °C
Phase bei STP Solid
Atomradius 184.0 pm

Elektronische Eigenschaften

Elektronegativität 1.36
Ionisierungsenergie 633.1 eV
Elektronenaffinität 18.1 eV
Valenzelektronen 3

Elektronenkonfiguration

Konfiguration [Ar] 3d¹ 4s²

Electron Shell Configuration

Scandium electron shell configuration Sc 2e⁻ 8e⁻ 9e⁻ 2e⁻

Position in Periodic Table

Scandium position in the periodic table Sc

Entdeckung

Entdeckt von: Lars Fredrik Nilson
Jahr: 1879

Periodensystem

Lanthanide Actinide

Mehr Übergangsmetall

Frequently Asked Questions

What is Scandium?
Scandium (Sc) is a chemical element with atomic number 21. It is a solid at standard temperature and pressure, classified as a übergangsmetall.
What are the key properties of Scandium?
Scandium has an atomic mass of 44.956 u, density of 2.985 g/cm³, melting point of 1540.8°C, boiling point of 2835.8°C.
What is the electron configuration of Scandium?
The electron configuration of Scandium is [Ar] 3d1 4s2. It is in the d-block of the periodic table.
Who discovered Scandium?
Scandium was discovered by Lars Fredrik Nilson in 1879.
What is the electronegativity of Scandium?
Scandium has an electronegativity of 1.36 on the Pauling scale.