Element: lanthanum |
Name : lanthanum |
Symbol : La |
Atomicnumber : 57 |
Relativeatomicmass : 138.90547 (7) g [see note g] |
Standardstate : solid at 298 K |
Appearance : silvery white |
Classification : Metallic |
Groupinperiodictable : None |
Groupname : Lanthanoid |
Periodinperiodictable : 6 (lanthanoid) |
Blockinperiodictable : f |
Shellstructure : 2.8.18.18.9.2 |
CASRegistry : 7439-91-0 |
Description : Lanthanum is silvery white, malleable, ductile, and soft enough to be cut with a knife. |