86 Rn Radón 222,0 u

Radón

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Período
6
Grupo
18
Bloque
p-bloque
Fase (STP)
Gas

El radón es un gas noble radiactivo formado por la desintegración del radio. Es la principal causa de cáncer de pulmón entre las personas no fumadoras.

Acerca de Radón

Radon forms wherever radium decays, which places this radioactive noble gas in soils, rock and building foundations across large parts of the inhabited surface. It is element 86, with a relative atomic mass of 222.0 and the closed-shell configuration [Xe] 4f14 5d10 6s2 6p6 that terminates period 6 in group 18. Its electronegativity is given as 2.2, and unlike the other elements of its period it is a gas at standard temperature and pressure. Public-health significance follows directly from that volatility: radon accumulates in enclosed indoor air, and prolonged exposure makes it the leading cause of lung cancer among people who have never smoked. Mitigation therefore centres on ventilation and on sealing the pathways by which soil gas enters a building.

Propiedades físicas

Masa atómica 222.0 u
Fase a STP Gas

Propiedades electrónicas

Electronegatividad 2.2

Configuración electrónica

Configuración [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁶

Configuración de capas electrónicas

Configuración de capas electrónicas de Radón Rn 2e⁻ 8e⁻ 18e⁻ 32e⁻ 18e⁻ 8e⁻
Estructura de capas electrónicas de Radón: electrones por capa.
Capa Electrones
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 18
6 (P) 8

Posición en la tabla periódica

Posición de Radón en la tabla periódica Rn

Bloque y período

Bloque

s p d f

Período

1 2 3 4 5 6 7

Tabla Periódica

Lantánidos Actínidos

Reacciones con Rn

Desintegración alfa de radio-226

²²⁶Ra → ²²²Rn + ⁴He

Nuclear

Desintegración alfa de radón-222

²²²Rn → ²¹⁸Po + ⁴He

Nuclear

Más Gas Noble

2 He Helio 10 Ne Neón 18 Ar Argón 36 Kr Kriptón 54 Xe Xenón

Frequently Asked Questions

What is Radón?
Radón (Rn) is a chemical element with atomic number 86. It is a gas at standard temperature and pressure, classified as a gas noble.
What are the key properties of Radón?
Radón has an atomic mass of 222.0 u.
What is the electron configuration of Radón?
The electron configuration of Radón is [Xe] 4f14 5d10 6s2 6p6. It is in the p-block of the periodic table.
What is the electronegativity of Radón?
Radón has an electronegativity of 2.2 on the Pauling scale.