Alpha Decay of Radium-226

226Ra → 222Rn + 4He

Обзор

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.

Участники

Роль Вещество Коэффициент Состояние
Реагент Radium Ra 1 (s)
Продукт Radon Rn 1 (g)
Продукт Helium He 1 (g)

Пример из жизни

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

Промышленное значение

Radium was historically used in luminous watch dials and cancer therapy. Radon monitoring in homes is now standard practice.

Свойства

Тип
Nuclear
Обратимая
Нет
Энергия
Экзотермическая
ΔH
-460000000,0 kJ/mol

Связанные реакции

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.