Isotopes of lead
The uranium decay chain ends with lead stable isotopes.
Lead 206 and lead 207.
Only the end product of the decay chain of uranium, a non radioactive isotope of lead.
The decay chain in the uranium 238 series (also called radium series) id lead 206 (stable isotope).
Ultimately lead, as it is the only element in the uranium decay chains with isotopes that are stable. Specifically the isotopes 206, 207, and 208; each of which is the end of a different decay chain.
The end products of uranium isotopes decay chain are the isotopes of lead.
When the element is stable. (apex)
The end element of the uranium decay chain is a stable isotope of lead.
Lead 206 (Pb)
When the element is stable. (apex)
No. Often a decay product is itself unstable and will decay into something else until a stable isotope is reached. This is called a decay chain. For example, Uranium-238 will decay 15 times through various isotopes until it becomes lead-206 which is stable
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.