"Elements which are similar as regards their chemical properties have atomic weights which are either of nearly the same value (eg. Pt, Ir, Os) or which increase regularly (eg. K, Ru, Cs)"

- Dmitri Mendeleev

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This quote is written / told by Dmitri Mendeleev between February 8, 1834 and February 2, 1907. He/she was a famous Scientist from Russia. The author also have 17 other quotes. Go to author profile