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.
Being radioactive, uranium is not a stable element.
The uranium decay chain ends with lead stable isotopes.
Isotopes of lead
none, uranium itself is unstable, there are no stable elements after bismuth; and even some researchers suggest that bismuth is an unstable radioactive element with a halflife approaching twice the age of the universe.
The end element of the uranium decay chain is a stable isotope of lead.
Uranium hasn't stable isotopes.
discovery of the elements Radium and Poloniumstudying the decay chains from the radioactive element Uranium down to the stable element Lead
Lead 206 and lead 207.
The decay chain in the uranium 238 series (also called radium series) id lead 206 (stable isotope).
It is uranium that is changed into lead during radioactive decay. Note that there are a number of intermediate steps in the conversion of uranium into stable lead. The uranium does not change directly into lead. The uranium atom undergoes decay, and a radioactive daughter product appears. This continues with radioactive daughters appearing at the end of every step - until lead appears.
A stable element is an element that does not provide radioactivity. 1 kg of Gold will be 1 kg of gold even after 100.000 years. It is a stable element. An unstable element (like Uranium or Plutoneum) gives off radioactivity and actually form new elements like lead. 1 kg of pure Uranium will be 500 grams of Uranium and 500 grams of lead after 100.000 years. Times given and breakdown products are for illustrative purposes only. Degradation of unstable materials is not my science but I know the basics of it :-) Regards.
A disintegration series is the pathway of a radioactively unstable element into a stable element. The pathway alters the atomic number of the element and converts the element into another element. A common one is the uranium disintegration series.