30 dic 1865 anni - He proposed his “law of octave” in 1864 which organized the known elements into a table by weight. He was one of the first scientists to discover a periodic pattern. He discovered that by arranging the elements by atomic mass, they shared similar properties every 7 elements.
Aggiunto al nastro di tempo:
Data:
30 dic 1865 anni
Adesso
~ 158 years ago
