Polonium-210 lose an alpha particle and become lead-206.
By alpha decay polonium-214 is transformed in lead-210. Po-214--------------alpha--------------Pb-210
Po-216- -----------------> Pb-212
Thorium, radium, radon, polonium, thallium, etc.
Polonium 212 has 84 protons and 128 neutrons. An alpha particle is 2 protons and 2 neutrons, so the daughter nucleus will have 82 protons and 126 neutrons, making it lead 208.
Lead 206 (Pb)
By alpha decay polonium-214 is transformed in lead-210. Po-214--------------alpha--------------Pb-210
After the alpha decay of polonium-212, there is lead-208 212/84 Po --------> 208/82 Pb + 4/2 He Lead 208
The reaction is:Po-216----------------alpha particle-----------------Pb-212
The reaction is:Po-210------------alpha particle------------------Pb-206
Po-216- -----------------> Pb-212
Thorium, radium, radon, polonium, thallium, etc.
Polonium 212 has 84 protons and 128 neutrons. An alpha particle is 2 protons and 2 neutrons, so the daughter nucleus will have 82 protons and 126 neutrons, making it lead 208.
Lead 206 (Pb)
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
Lead 206 (Pb)
Lead, the isotope Pb 206.
All radioactive elements eventually decay to lead (Pb). There a numerous isotopes of lead and it is thought that all the lead(Pb) in the world is derived from decayed radioactive isotopes.