Alpha Decay of Radium-226
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226Ra → 222Rn + 4He
概述
Radium-226 emits an alpha particle to form radon-222 gas. Radium was discovered by Marie and Pierre Curie in 1898 and was the first radioactive element isolated in pure form. Marie Curie won two Nobel Prizes for her work on radioactivity. Radium's decay produces radon, a radioactive gas.
参与者
日常示例
Radon gas produced by radium decay in soil seeps into basements and is the second leading cause of lung cancer after smoking.
工业重要性
镭历史上用于夜光表盘和癌症治疗。如今家庭氡监测已成为标准做法。
属性
- 类型
- Nuclear
- 可逆
- 否
- 能量
- 放热
- ΔH
- -460000000.0 kJ/mol
Frequently Asked Questions
What is the equation for Alpha Decay of Radium-226?
The balanced equation is: ²²⁶Ra → ²²²Rn + ⁴He.
What type of reaction is Alpha Decay of Radium-226?
Alpha Decay of Radium-226 is a nuclear reaction.
Is Alpha Decay of Radium-226 exothermic or endothermic?
Alpha Decay of Radium-226 is exothermic (releases energy). The enthalpy change (ΔH) is -460000000.0 kJ/mol.