37 Rb Rubidio 85,468 u

Rubidio

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Período
5
Grupo
1
Bloque
s-bloque
Fase (STP)
Solid

El rubidio es un metal alcalino blando y blanco plateado que se inflama espontáneamente en el aire. Se usa en relojes atómicos y vidrios especiales.

Acerca de Rubidio

Soft, silvery-white, and reactive enough to ignite spontaneously in air, rubidium is an alkali metal of atomic number 37 and atomic mass 85.468. Its single valence electron ([Kr] 5s1) is loosely bound, giving the low electronegativity of 0.82 characteristic of its group. The element is a solid under standard conditions and sits in group 1, period 5, below potassium. As a heavier member of the alkali metals, rubidium holds its outer electron more weakly and is correspondingly more reactive than the lighter members, and it is never found in the free state. Its specialized uses include atomic clocks and the manufacture of certain specialty glasses, applications that draw on its well-defined atomic transitions and ready ionization.

Propiedades físicas

Masa atómica 85.468 u
Fase a STP Solid

Propiedades electrónicas

Electronegatividad 0.82

Configuración electrónica

Configuración [Kr] 5s¹

Configuración de capas electrónicas

Configuración de capas electrónicas de Rubidio Rb 2e⁻ 8e⁻ 18e⁻ 8e⁻ 1e⁻
Estructura de capas electrónicas de Rubidio: electrones por capa.
Capa Electrones
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 8
5 (O) 1

Posición en la tabla periódica

Posición de Rubidio en la tabla periódica Rb

Bloque y período

Bloque

s p d f

Período

1 2 3 4 5 6 7

Tabla Periódica

Lantánidos Actínidos

Más Metal Alcalino

3 Li Litio 11 Na Sodio 19 K Potasio 55 Cs Cesio 87 Fr Francio

Frequently Asked Questions

What is Rubidio?
Rubidio (Rb) is a chemical element with atomic number 37. It is a solid at standard temperature and pressure, classified as a metal alcalino.
What are the key properties of Rubidio?
Rubidio has an atomic mass of 85.468 u.
What is the electron configuration of Rubidio?
The electron configuration of Rubidio is [Kr] 5s1. It is in the s-block of the periodic table.
What is the electronegativity of Rubidio?
Rubidio has an electronegativity of 0.82 on the Pauling scale.