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100
Alchemists
An alchemist is basically a person who practices chemistry and some would say they practice medieval chemistry.(100ad-200ad) -
460
Democritus
Greek philosopher who developed an atomistic theory of matter for the universe
(460 A.D- 370 A.D) -
Jhon Dalton
devloped the atomic theroy discoverd it and he made other observations -
J.J Thomson
dicoverd the electron no date givin in my research -
Albert Einstein
he dicoverd general relativity, and special relativity -
Max Planck
"theory of relativity" was based on the expression "relative theory" used by Max Planck -
Niels Bohr
dicoverd the nucleus -
Ernest Rutherford
he discovered the proton -
Electron Cloud Model
The electron cloud model was actually invented by three different scientists. They were Ernest Rutherford, Niels Bohr, and Werner Heisenberg. -
James Chadwick
discovered the neutron