Ytterbium (Yb) Block- Chemistry
- Today some blocks for the chemical element symbols, (from the previous festoon) that can contribute letters for the word Chemistry.
I used Carbon (C), Helium (He), Manganese (Mn), Iodine (I), Sulfur (S), Tellurium (Te), Radium (Ra) and Ytterbium (Yb). :-)
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