Beta Decay of Carbon-14

14C → 14N + e− + ν̄e

概要

Carbon-14 undergoes beta-minus decay to nitrogen-14, emitting an electron and an antineutrino. C-14 has a half-life of 5,730 years and is continuously produced in the atmosphere by cosmic ray neutrons interacting with nitrogen. The ratio of C-14 to C-12 in organic remains decreases after death, enabling radiocarbon dating.

参加者

役割 物質 係数 状態
反応物 Carbon C 1 (s)
生成物 Nitrogen N 1 (g)

日常の例

Radiocarbon dating determined the age of the Dead Sea Scrolls, Otzi the Iceman, and the Shroud of Turin.

産業上の重要性

炭素14年代測定は考古学と古生物学に革命をもたらしました。ウィラード・リビーはこの技術の開発で1960年のノーベル賞を受賞しました。

特性

タイプ
Nuclear
可逆的
いいえ
エネルギー
発熱性
ΔH
-15000000.0 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 Iodine-131 Beta Decay of Strontium-90 Alpha Decay of Polonium-210 Americium-241 Alpha Decay Beta Decay of Cobalt-60 Electron Capture by Beryllium-7

Frequently Asked Questions

What is the equation for Beta Decay of Carbon-14?
The balanced equation is: ¹⁴C → ¹⁴N + e⁻ + ν̄ₑ.
What type of reaction is Beta Decay of Carbon-14?
Beta Decay of Carbon-14 is a nuclear reaction.
Is Beta Decay of Carbon-14 exothermic or endothermic?
Beta Decay of Carbon-14 is exothermic (releases energy). The enthalpy change (ΔH) is -15000000.0 kJ/mol.