Dmitri Mendeleev (Periodic Table) (1 gen 1869 anni – 1 gen 1869 anni)

Descrizione:

Mendeleev created the first widely recognized periodic table, arranging elements by increasing atomic weight and leaving gaps for undiscovered elements, predicting their properties.

Example: Mendeleev predicted the existence of germanium (Ge), which he called "eka-silicon" before it was discovered. He predicted its atomic weight and properties, which was later confirmed when germanium was discovered.

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