Curium isotopes
It is a rare earth element metal that emits beta radius.
Uranium-238 emits alpha radiation; its half-life is 4,468×109 year.
Lead-212 is radioactive and emits alpha particles upon decay.Experiments have shown that it may be useful intheradioimmunotherapy of certain cancers.
The Earth emits infrared radiation at greatest intensity
China
226 88Ra
This isotope is radium-226.
The nuclear reaction is: 232Th--------------- 228Ra + α
dude..
Emitting an alpha particle 213Bi become 209Tl.
It drops 2
Next element in the periodic table ie Actinium.
2 neutrons and 2 protons (this is what an alpha particle is made up of).
alpha particle
4 from the alpha. Betas have negligible mass and gammas have no mass.
226Ra------------alpha particle----------222Rn (radon, a radioactive gas)
The atomic number will decrease by 2, the number of protons in the emitted alpha particle. An alpha particle is a helium-4 nuclei with two protons and two neutrons.