Potassium Radioisotopes

**Definition:** Unstable isotopes of potassium that decay or disintegrate emitting radiation. K atoms with atomic weights 37, 38, 40, and 42-45 are radioactive potassium isotopes.

**Tree numbers:** - D01.268.549.550.500.700 - D01.268.557.575.500.700 - D01.496.705.700 - D01.496.749.690 - D01.552.528.652.500.700 - D01.552.547.650.500.700