Curium

**Definition:** A radioactive actinide with atomic symbol Cm, and atomic number 96. Thirteen curium isotopes have been produced with mass numbers ranging from 238-250. Its valence can be +3 or +4. It is intensely radioactive and decays by alpha-emission.

**Tree numbers:** - D01.268.271.100.175 - D01.268.556.200 - D01.496.749.305.100.175 - D01.552.020.272 - D01.552.544.200