Beta Decay of Carbon-14

14C → 14N + e− + ν̄e

概述

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.

参与者

角色 物质 系数 状态
反应物 Carbon C 1 (s)
产物 Nitrogen N 1 (g)

日常示例

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

工业重要性

碳-14定年彻底改变了考古学和古生物学。威拉德·利比因开发此技术而获1960年诺贝尔奖。

属性

类型
Nuclear
可逆
否
能量
放热
ΔH
-15000000.0 kJ/mol

相关反应

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.