Dmitri Mendeleev Quote: No.17
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We must expect the discovery of many as yet unknown elements-for example, elements analogous to aluminum and silicon- whose atomic weight would be between 65 and 75. Dmitri Mendeleev | Refcard PDF ↑
We must expect the discovery of many as yet unknown elements-for example, elements analogous to aluminum and silicon- whose atomic weight would be between 65 and 75. Dmitri Mendeleev | Refcard PDF ↑