19 K Potassium 39,098 u

Potassium

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Período
4
Grupo
1
Bloque
s-bloque
Fase (STP)
Solid

Potassium is an essential alkali metal for all living cells. It is the seventh most abundant element in Earth's crust.

Apariencia: Silvery-gray

Propiedades físicas

Masa atómica 39.098 u
Densidad 0.862 g/cm³
Punto de fusión 63.6 °C
Punto de ebullición 758.9 °C
Fase a STP Solid
Radio atómico 243.0 pm

Propiedades electrónicas

Electronegatividad 0.82
Energía de ionización 418.8 eV
Afinidad electrónica 48.4 eV
Electrones de valencia 1

Configuración electrónica

Configuración [Ar] 4s¹

Electron Shell Configuration

Potassium electron shell configuration K 2e⁻ 8e⁻ 8e⁻ 1e⁻

Position in Periodic Table

Potassium position in the periodic table K

Descubrimiento

Descubierto por: Humphry Davy
Año: 1807

Compounds Containing Potassium

Más Metal Alcalino

Frequently Asked Questions

What is Potassium?
Potassium (K) is a chemical element with atomic number 19. It is a solid at standard temperature and pressure, classified as a metal alcalino.
What are the key properties of Potassium?
Potassium has an atomic mass of 39.098 u, density of 0.862 g/cm³, melting point of 63.6°C, boiling point of 758.9°C.
What is the electron configuration of Potassium?
The electron configuration of Potassium is [Ar] 4s1. It is in the s-block of the periodic table.
Who discovered Potassium?
Potassium was discovered by Humphry Davy in 1807.
What is the electronegativity of Potassium?
Potassium has an electronegativity of 0.82 on the Pauling scale.