Answer:
It is goin to have a long half life that is they have high stability.
Step-by-step explanation:
The term radioactive decay can be defined as the spontaneous splitting or degradation of atoms of an isotope with unstable nucleus(parent nuclide) into a stable nucleus atoms(daughter nuclides). The following should be noted down for radioactive decay;
(1). Radioactive decay is a first order reaction.
(2). It is not affected by pressure.
(3). It is a spontaneous reaction..
The radioactive decay for a single (not a large quantity) isotope has a long half life because it will take more time for it to disintegrate into another nuclide