Pe 28 octombrie Mendeleev a publicat Sistemul Periodic al Elementelor
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Pe 28 octombrie 1869, Mendeleev a publicat Sistemul Periodic al Elementelor 28 octombrie 1869 Dimitri Mendeleev a publicat în anul 1869 ceea ce avea să fie primul tabel periodic recunoscut la nivel mondial. Acesta și-a realizat tabelul astfel încât să ilustreze tendințele periodice pe care le prezentau proprietățile elementelor cunoscute la acea vreme. Folosindu-se de […]
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