25 Mn Manganeso 54,938 u

Manganeso

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Período
4
Grupo
7
Bloque
d-bloque
Fase (STP)
Solid

El manganeso es un metal de transición duro y quebradizo, esencial para la producción de acero. También es importante en los sistemas biológicos como cofactor de muchas enzimas.

Apariencia: Silvery metallic

Acerca de Manganeso

Hard and brittle, manganese is a silvery transition metal that is essential to steelmaking, where it improves strength during production. It has atomic number 25 and an atomic mass of 54.938, a density of 7.21 g/cm³, and a melting point of 1519 K. Its half-filled d subshell in the [Ar] 3d5 4s2 configuration gives an electronegativity of 1.55 and a first ionization energy of 717 kJ/mol. Johan Gottlieb Gahn first isolated the metal in 1774. Beyond metallurgy, manganese is important in biology as a cofactor for many enzymes. It belongs to group 7, period 4.

Propiedades físicas

Masa atómica 54.938 u
Densidad 7.21 g/cm³
Punto de fusión 1245.8 °C
Punto de ebullición 2060.8 °C
Fase a STP Solid
Radio atómico 161.0 pm

Propiedades electrónicas

Electronegatividad 1.55
Energía de ionización 717.3 eV
Electrones de valencia 7

Configuración electrónica

Configuración [Ar] 3d⁵ 4s²

Configuración de capas electrónicas

Configuración de capas electrónicas de Manganeso Mn 2e⁻ 8e⁻ 13e⁻ 2e⁻
Estructura de capas electrónicas de Manganeso: electrones por capa.
Capa Electrones
1 (K) 2
2 (L) 8
3 (M) 13
4 (N) 2

Posición en la tabla periódica

Posición de Manganeso en la tabla periódica Mn

Descubrimiento

Descubierto por: Johan Gottlieb Gahn
Año: 1774

Compuestos que contienen Manganeso

Frequently Asked Questions

What is Manganeso?
Manganeso (Mn) is a chemical element with atomic number 25. It is a solid at standard temperature and pressure, classified as a metal de transición.
What are the key properties of Manganeso?
Manganeso has an atomic mass of 54.938 u, density of 7.21 g/cm³, melting point of 1245.8°C, boiling point of 2060.8°C.
What is the electron configuration of Manganeso?
The electron configuration of Manganeso is [Ar] 3d5 4s2. It is in the d-block of the periodic table.
Who discovered Manganeso?
Manganeso was discovered by Johan Gottlieb Gahn in 1774.
What is the electronegativity of Manganeso?
Manganeso has an electronegativity of 1.55 on the Pauling scale.