Beta Decay of Iodine-131

131I → 131Xe + e + ν̄e + γ

نظرة عامة

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.

المشاركون

الدور المادة المعامل الحالة
متفاعل Iodine I 1 (s)
منتج Xenon Xe 1 (g)

مثال من الحياة اليومية

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

الأهمية الصناعية

I-131 is used to treat hyperthyroidism and thyroid cancer (radioiodine therapy), and in diagnostic thyroid scans.

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.