Not susceptible to any process of decay or change in the long term.
Not susceptible to any process of decay or change in the long term. It is often used to refer to isotopes that do not show any kind of radioactive decay, or that have radioactive half-lives too long to be measured.
It is often used to refer to isotopes that do not show any kind of radioactive decay, or that have radioactive half-lives too long to be measured.