Dmitri Mendeleev (TABLE; He described elements according to both atomic weight (now called relative atomic mass) and valence.) (1 Jan 1869 Jahr – 18 Mai 1869 Jahr)

Beschreibung:

As he attempted to classify the elements according to their chemical properties, he noticed patterns that led him to postulate his periodic table; he claimed to have envisioned the complete arrangement of the elements in a dream.

Zugefügt zum Band der Zeit:

Datum:

Abbildungen: