-
340
Aristotle
Thought atomic idea was worthless *note time in BC -
Period: 340 to
Evolution of Atomic Theory
-
460
Democritus
Atoms and Void, everything is made of atoms and void. His discovery helped with the evolution of atomic theory. Quote "by convection bitter, byconvection sweet, but in reality atoms and void." He developed the atom. "how many times can you break until you can't break it no longer. Named the Atom. *time in BC -
Period: 525 to Jan 1, 625
Thale's disciples
*note times in BC -
Jan 1, 611
Anaximander from Miletus
He was disiple of Thales. Found more than one basic substance we now call them chemical elements. Made a aperionfilled whole world and creative element of all other substances which later disappeared. *note time in BC -
Jan 1, 625
Thales from Miletus
discovered electricity didn't connect with any atomic particle *note tim in BC -
Isaac Newton
discovered a mechanical universe with solid particles in motion. -
John Dalton
performed a experment with varouis chemicals that should that matter consist of atoms -
Michael Faraday
Studied the effect of electricity on solutions, coined term "electrolysis" as a splitting of molecules with electricity, developed laws of electrolysis. Faraday himself was not a proponent of atomism. -
Dmiyri Mendeleev
Arranged elements into 7 groups with similar properties. He discovered that the properties of elements "were periodic functions of the their atomic weights". This became known as the Periodic Law. -
Anaximenes from Miletus
disciple of Thales. Said,maintained that basic substances was not wateras his teacher saidneither apeiron like his college said but air. All things could be made by thickening of air. *note time in BC
