The isotope lead-204 is obtained.
Lead-208 is formed by alpha decay (emission of alpha particles) from polonium-212.
Polonium-210 become lead-206 after the emission of an alpha particle.
The reaction is:Po-216----------------alpha particle-----------------Pb-212
In this case alpha particles are emitted.
Alpha emission means that an alpha particle (2 protons + 2 neutrons) are emitted, so the original nucleus has 2 protons and 2 neutrons more.
Lead-208 is formed by alpha decay (emission of alpha particles) from polonium-212.
Polonium-218-------------alpha---------------Lead-214
Polonium-210 become lead-206 after the emission of an alpha particle.
After the alpha decay of polonium-212, there is lead-208 212/84 Po --------> 208/82 Pb + 4/2 He Lead 208
Polonium 210-----------alpha particles-----------Lead 206 Polonium 209-----------alpha particles-----------Lead 205 Polonium 208-----------alpha particles-----------Lead 204 Polonium 214-----------alpha particles-----------Lead 210 Polonium 218-----------alpha particles-----------Lead 214 (99,98 %) Polonium 218-----------beta particles------------Astatin 218 (o,o2 %) For other isotopes see the list at: http://en.wikipedia.org/wiki/Polonium#Isotopes
Polonium-210 is an alpha emitter.
The detection of polonium is by alpha spectrometry.
The density of alpha polonium is 9,196 g/cm3.
Radium and polonium are principally alpha emitters.
The density of alpha polonium is 9,196 g/cm3.
The structure of polonium alpha form is cubic.The structure of polonium beta form is rhombohedral.
The equation for the alpha decay of 210Po is: 84210Po --> 82206Pb + 24He representing the alpha particle as a helium nucleus. 206Pb, the daughter atom, is stable.