Johaan Wolfgang Döbereiner (1 Jan 1820 Jahr – 31 Dez 1830 Jahr)
Beschreibung:
During this time period Johaan, noticed a pattern in 3 elements.He found that the
relative atomic mass of the middle
element lay roughly halfway between the lightest and heaviest elements in the group of three.
Zugefügt zum Band der Zeit:
Datum:
1 Jan 1820 Jahr
31 Dez 1830 Jahr
~ 11 years