many. one example is lead-214 with a halflife of 26.8 minutes.
Mercury
When an isotope is unstable, it is said to be radioactive.
The radioactive isotope is disintegrated in time and emit radiations.
The radioactive isotope is disintegrated in time and emit radiations.
Lead (Pb) is the ultimate element of the decay chain of uranium.And this lead isotope is not radioactive.
when an isotope is it does not undergo radioactive decay
During any type of radioactive decay, one isotope (type of atom) will convert into a different isotope.
Thorium B is 212Pb: radioactive isotope of lead. Thorium D is 208Pb: stable isotope of lead.
The half life of an isotope refers to the rate at which a radioactive isotope undergoes radioactive decay. Specifically, it is the amount of time it takes for half of a given sample of a radioactive isotope to decay.
That's called a daughter isotope, or a daughter product. (The original isotope that decayed is the parent isotope.)
The half-life of a radioactive isotope is the amount of time it takes for one-half of the radioactive isotope to decay. The half-life of a specific radioactive isotope is constant; it is unaffected by conditions and is independent of the initial amount of that isotope.
Any americium in a kettle !