Yttrium Radioisotopes

**Definition:** Unstable isotopes of yttrium that decay or disintegrate emitting radiation. Y atoms with atomic weights 82-88 and 90-96 are radioactive yttrium isotopes.

**Tree numbers:** - D01.268.558.975.500.800 - D01.268.956.890.500.800 - D01.496.749.960 - D01.496.943.800 - D01.552.550.975.500.800