Alpha Decay of Radon-222

222Rn → 218Po + 4He

개요

Radon-222, a radioactive noble gas, alpha decays to polonium-218 with a half-life of 3.82 days. As the densest naturally occurring gas, radon accumulates in basements and enclosed spaces. Its short-lived decay products (Po-218, Po-214) deposit in lungs and cause radiation damage.

참여 물질

역할 물질 계수 상태
반응물 Radon Rn 1 (g)
생성물 Polonium Po 1 (s)
생성물 Helium He 1 (g)

일상 속 예시

EPA recommends testing homes for radon, which causes an estimated 21,000 lung cancer deaths per year in the US alone.

산업적 중요성

라돈 측정과 저감은 중요한 산업입니다. 라돈은 또한 지진 예측 연구와 수문학 추적에도 사용됩니다.

성질

유형
Nuclear
가역 반응
아니오
에너지
발열
ΔH
-550000000.0 kJ/mol

관련 반응

Alpha Decay of Radium-226 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 Radon-222?
The balanced equation is: ²²²Rn → ²¹⁸Po + ⁴He.
What type of reaction is Alpha Decay of Radon-222?
Alpha Decay of Radon-222 is a nuclear reaction.
Is Alpha Decay of Radon-222 exothermic or endothermic?
Alpha Decay of Radon-222 is exothermic (releases energy). The enthalpy change (ΔH) is -550000000.0 kJ/mol.