Element: praseodymium |
Name : praseodymium |
Symbol : Pr |
Atomicnumber : 59 |
Relativeatomicmass : 140.90766 (2) |
Standardstate : solid at 298 K |
Appearance : silvery white, yellowish tinge |
Classification : Metallic |
Groupinperiodictable : None |
Groupname : Lanthanoid |
Periodinperiodictable : 6 (lanthanoid) |
Blockinperiodictable : f |
Shellstructure : 2.8.18.21.8.2 |
CASRegistry : 7440-10-0 |
Description : Praseodymium is soft, silvery, malleable, and ductile. It was prepared in relatively pure form in 1931. |