Alpha Decay of Radium-226

226Ra → 222Rn + 4He

개요

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.

참여 물질

역할 물질 계수 상태
반응물 Radium Ra 1 (s)
생성물 Radon Rn 1 (g)
생성물 Helium He 1 (g)

일상 속 예시

Radon gas produced by radium decay in soil seeps into basements and is the second leading cause of lung cancer after smoking.

산업적 중요성

라듐은 역사적으로 야광 시계 다이얼과 암 치료에 사용되었습니다. 현재는 가정 내 라돈 측정이 표준 관행입니다.

성질

유형
Nuclear
가역 반응
아니오
에너지
발열
ΔH
-460000000.0 kJ/mol

관련 반응

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 Plutonium-239 Fission Electron Capture by Beryllium-7

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.