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Ytterbium - Wikipedia
Ytterbium | Rare Earth Element, Atomic Number 70 | Britannica
Ytterbium - Element information, properties and uses | Periodic …
Ytterbium Element | Uses, Facts, Physical & Chemical Characteristics
Ytterbium (Yb): A Comprehensive Guide to Element 70
WebElements Periodic Table » Ytterbium » the essentials
Ytterbium Facts - Yb Element - ThoughtCo
Ytterbium Element Facts - chemicool.com
Ytterbium - Encyclopedia.com
ytterbium summary | Britannica