Chalcogenides and pnictides Sulfides, selenides and tellurides of curium have been obtained by treating curium with gaseous sulfur, selenium or tellurium in vacuum at elevated temperature.Troc, R. Actinide Monochalcogenides, Volume 27, Springer, 2009 , p. 4 Curium pnictides of the type CmX are known for nitrogen, phosphorus, arsenic and antimony. They can be prepared by reacting either curium(III) hydride (CmH3) or metallic curium with these elements at elevated temperature.Lumetta, G. J.; Thompson, M. C.; Penneman, R. A.; Eller, P. G. Curium , Chapter Nine in Radioanalytical Chemistry, Springer, 2004, pp. 1420–1421. ,
C,halcogenides and pnictides Sulfides, selenides and tellurides of curium have been obtained by treating curium with gaseous sulfur, selenium or tellurium in vacuum at elevated tempe,rature.Troc, R. Actinide Monochalcogenides, Volume 27 Springer, 2009  p. 4 Curium pnictides of the type CmX are known for nitrogen, phosphorus, arsenic and antimony. They can be prepared by reacting either curium(III) ,hydride (CmH3) or me,tallic curium with these elements at elevated temperature.Lumetta, G. J.; Thompson M. C.; Penneman, R. A.; Eller, P. G. Curium , Chapter Nine in Radioanalytical Chemistry, Springer, 2004, pp. 1420–1421. 