Beta Decay of Iodine-131

131I → 131Xe + e− + ν̄e + γ

概要

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.

参加者

役割 物質 係数 状態
反応物 Iodine I 1 (s)
生成物 Xenon Xe 1 (g)

日常の例

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

産業上の重要性

I-131は甲状腺機能亢進症と甲状腺がんの治療(放射性ヨウ素療法)、および診断用甲状腺スキャンに使用されています。

特性

タイプ
Nuclear
可逆的
いいえ
エネルギー
発熱性
ΔH
-97000000.0 kJ/mol

関連する反応

Alpha Decay of Radium-226 Alpha Decay of Radon-222 Alpha Decay of Thorium-232 Neutron Capture by Uranium-238 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 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.