21 Sc Scandium 44,956 u

Scandium

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Período
4
Grupo
3
Bloque
d-bloque
Fase (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.

Apariencia: Silvery white

Propiedades físicas

Masa atómica 44.956 u
Densidad 2.985 g/cm³
Punto de fusión 1540.8 °C
Punto de ebullición 2835.8 °C
Fase a STP Solid
Radio atómico 184.0 pm

Propiedades electrónicas

Electronegatividad 1.36
Energía de ionización 633.1 eV
Afinidad electrónica 18.1 eV
Electrones de valencia 3

Configuración electrónica

Configuración [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

Descubrimiento

Descubierto por: Lars Fredrik Nilson
Año: 1879

Bloque y período

Período

Tabla Periódica

Lantánidos Actínidos

Más Metal de Transición

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 metal de transición.
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.