Alpha Decay of Radon-222

222Rn → 218Po + 4He

Visão geral

Radon-222, a radioactive noble gas, alpha decays to polonium-218 with a half-life of 3.82 days. As the densest naturally occurring gas, radon accumulates in basements and enclosed spaces. Its short-lived decay products (Po-218, Po-214) deposit in lungs and cause radiation damage.

Participantes

Papel Substância Coeficiente Estado
Reagente Radon Rn 1 (g)
Produto Polonium Po 1 (s)
Produto Helium He 1 (g)

Exemplo do cotidiano

EPA recommends testing homes for radon, which causes an estimated 21,000 lung cancer deaths per year in the US alone.

Importância industrial

A deteção e mitigação do rádon é uma indústria significativa. O rádon é também utilizado em investigação de previsão de sismos e em traçagem hidrológica.

Propriedades

Tipo
Nuclear
Reversível
Não
Energia
Exotérmico
ΔH
-550000000,0 kJ/mol

Reações relacionadas

Alpha Decay of Radium-226 Alpha Decay of Thorium-232 Neutron Capture by Uranium-238 Beta Decay of Iodine-131 Beta Decay of Strontium-90 Alpha Decay of Polonium-210 Americium-241 Alpha Decay Beta Decay of Cobalt-60 Plutonium-239 Fission Electron Capture by Beryllium-7

Frequently Asked Questions

What is the equation for Alpha Decay of Radon-222?
The balanced equation is: ²²²Rn → ²¹⁸Po + ⁴He.
What type of reaction is Alpha Decay of Radon-222?
Alpha Decay of Radon-222 is a nuclear reaction.
Is Alpha Decay of Radon-222 exothermic or endothermic?
Alpha Decay of Radon-222 is exothermic (releases energy). The enthalpy change (ΔH) is -550000000.0 kJ/mol.