RID11756 chemical element
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RID11900 ytterbium
synonym
Yb
definition
Ytterbium. An element of the rare earth family of metals. It has the atomic symbol Yb, atomic number 70, and atomic weight 173. Ytterbium has been used in lasers and as a portable x-ray source. [MeSH]
comment
Period6, Group=, Z=70