Radioisotope

+A **radioisotope** is an atom with an unstable nucleus, inherently transforming over time. As it decays, it releases [Radiation](/wiki/radiation) and particles, becoming a more stable [Isotope](/wiki/isotope) or a different element.

+## See also

+- [Radioactive Decay](/wiki/radioactive-decay)

+- [Half-life](/wiki/half-life)

+- [Nuclear Medicine](/wiki/nuclear-medicine)