Electron Capture by Beryllium-7

7Be + e− → 7Li + νe

概要

Beryllium-7 captures an inner orbital electron, converting a proton to a neutron and producing lithium-7 and a neutrino. This electron capture process occurs with a half-life of 53.2 days. Be-7 is produced in the atmosphere by cosmic ray spallation and is used as an environmental tracer.

参加者

役割 物質 係数 状態
反応物 Beryllium Be 1 (s)
生成物 Lithium Li 1 (s)

日常の例

Be-7 deposits from the atmosphere onto soil and is used by environmental scientists to measure soil erosion rates.

産業上の重要性

Be-7は大気プロセス、土壌侵食研究、ニュートリノ流束測定のトレーサーとして利用される。太陽ニュートリノ検出実験でも重要な役割を果たす。

特性

タイプ
Nuclear
可逆的
いいえ
エネルギー
発熱性
ΔH
-86000000.0 kJ/mol

関連する反応

Alpha Decay of Radon-222 Neutron Capture by Uranium-238 Beta Decay of Strontium-90 Beta Decay of Cobalt-60 Beta Decay of Carbon-14 Proton-Proton Chain (Solar Fusion) Uranium-235 Fission Positron Emission of Carbon-11 Positron Emission of Fluorine-18 (PET Scan) Alpha Decay of Radium-226

Frequently Asked Questions

What is the equation for Electron Capture by Beryllium-7?
The balanced equation is: ⁷Be + e⁻ → ⁷Li + νₑ.
What type of reaction is Electron Capture by Beryllium-7?
Electron Capture by Beryllium-7 is a nuclear reaction.
Is Electron Capture by Beryllium-7 exothermic or endothermic?
Electron Capture by Beryllium-7 is exothermic (releases energy). The enthalpy change (ΔH) is -86000000.0 kJ/mol.