Is manganese radioactive?

Answer:
Nearly 100% of manganese found in nature is 55Mn, which is not radioactive. Trace quantities of 53Mn, which is radioactive, are found in nature, but they are insignificant. Like all elements, synthetic radioactive isotopes of manganese exist.
First answer by ID1141180548. Last edit by GeoHarvey. Contributor trust: 262 [recommend contributor recommended]. Question popularity: 2 [recommend question].