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Name:Erbium
Symbol:Er
Atomic Number:68
Atomic Mass:167.259 (3)
Standard State:solid at 298 K
Group name:Lanthanoid
Period in Periodic Table:6 (lanthanoid)
Color:silvery white
Classification:Metallic

Pure erbium metal is soft and silvery, metallic lustre.As with other rare-earth metals,its properties depend to a certain extent on impurities present.The metal is fairly stable in air and does not oxidise as rapidly as some of the otherrare-earht metals.The following uses for erbuim are gathered from a number of anecdotal comments.