15 P Fósforo 30,974 u

Fósforo

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Período
3
Grupo
15
Bloque
p-bloque
Fase (STP)
Solid

El fósforo es esencial para la vida y se encuentra en el ADN, el ARN y el ATP. Existe en varias formas alotrópicas, entre ellas el fósforo blanco y el rojo.

Apariencia: Waxy white (white phosphorus)

Acerca de Fósforo

Discovered by the alchemist Hennig Brand in 1669, phosphorus was among the first elements isolated in the modern era. It is a reactive nonmetal of atomic number 15 and atomic mass 30.974, appearing most familiarly as a waxy white solid that melts at 317 K. Five valence electrons ([Ne] 3s2 3p3) give an electronegativity of 2.19 and a first ionization energy of 1012 kJ/mol. The element exists in several allotropic forms, including white and red phosphorus. Phosphorus is essential to life, forming part of DNA, RNA, and the energy carrier ATP. It sits in group 15, period 3, below nitrogen.

Propiedades físicas

Masa atómica 30.974 u
Densidad 1.82 g/cm³
Punto de fusión 44.2 °C
Punto de ebullición 280.6 °C
Fase a STP Solid
Radio atómico 98.0 pm

Propiedades electrónicas

Electronegatividad 2.19
Energía de ionización 1011.8 eV
Afinidad electrónica 72.0 eV
Electrones de valencia 5

Configuración electrónica

Configuración [Ne] 3s² 3p³

Configuración de capas electrónicas

Configuración de capas electrónicas de Fósforo P 2e⁻ 8e⁻ 5e⁻
Estructura de capas electrónicas de Fósforo: electrones por capa.
Capa Electrones
1 (K) 2
2 (L) 8
3 (M) 5

Posición en la tabla periódica

Posición de Fósforo en la tabla periódica P

Descubrimiento

Descubierto por: Hennig Brand
Año: 1669

Compuestos que contienen Fósforo

Frequently Asked Questions

What is Fósforo?
Fósforo (P) is a chemical element with atomic number 15. It is a solid at standard temperature and pressure, classified as a no metal.
What are the key properties of Fósforo?
Fósforo has an atomic mass of 30.974 u, density of 1.82 g/cm³, melting point of 44.2°C, boiling point of 280.6°C.
What is the electron configuration of Fósforo?
The electron configuration of Fósforo is [Ne] 3s2 3p3. It is in the p-block of the periodic table.
Who discovered Fósforo?
Fósforo was discovered by Hennig Brand in 1669.
What is the electronegativity of Fósforo?
Fósforo has an electronegativity of 2.19 on the Pauling scale.