Beta Decay of Iodine-131

131I → 131Xe + e− + ν̄e + γ

Visão geral

Iodine-131 beta decays to xenon-131 with a half-life of 8.02 days, also emitting gamma radiation. I-131 concentrates in the thyroid gland due to the thyroid's uptake of iodine. This makes it both a medical tool (diagnostic and therapeutic) and a health hazard in nuclear accidents.

Participantes

Papel Substância Coeficiente Estado
Reagente Iodine I 1 (s)
Produto Xenon Xe 1 (g)

Exemplo do cotidiano

After the Chernobyl and Fukushima accidents, potassium iodide tablets were distributed to block I-131 uptake by saturating the thyroid with stable iodine.

Importância industrial

O I-131 é utilizado no tratamento do hipertiroidismo e do cancro da tiroide (terapia com iodo radioativo) e em cintigrafias tiroideias de diagnóstico.

Propriedades

Tipo
Nuclear
Reversível
Não
Energia
Exotérmico
ΔH
-97000000,0 kJ/mol

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Frequently Asked Questions

What is the equation for Beta Decay of Iodine-131?
The balanced equation is: ¹³¹I → ¹³¹Xe + e⁻ + ν̄ₑ + γ.
What type of reaction is Beta Decay of Iodine-131?
Beta Decay of Iodine-131 is a nuclear reaction.
Is Beta Decay of Iodine-131 exothermic or endothermic?
Beta Decay of Iodine-131 is exothermic (releases energy). The enthalpy change (ΔH) is -97000000.0 kJ/mol.