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400 BCE
Democritus
Greek philosopher who is considered the first to theorize about the atom and create the first model of the atom that was a simple sphere -
Antoine Lavoisier
Sometimes referred to as the father of modern chemistry, his greatest role was characterising oxygen and hydrogen as well as recognizing how oxygen is important in the combustion process -
John Dalton
Most memorable for his contribution of the Atomic theory that states ideas such as the fact all elements are constructed of atoms and the idea of -
J.J. Thomson
J.J. Thomson was an English physicist who was appointed to the Cavendish Professorship of Experimental Physics at the Cambridge, he discovered the electron and shortly after created the "Plum Pudding" atom model -
Dmitri Mendeleev
Dmitri Mendeleev was a Russian chemist and inventor. He formulated the Periodic Law, created a farsighted version of the periodic table of elements, and used it to correct the properties of some already discovered elements -
Ernest Rutherford
Ernest Rutherford was a New Zealand physicist who came to be known as the father of nuclear physics. He won the Nobel Prize in Chemistry for his investigations into the disintegration of the elements, and the chemistry of radioactive substances. -
Eugen Goldstein
1908 Eugen Goldstein was a German physicist. He was an early investigator of discharge tubes, the discoverer of anode rays, and is sometimes credited with the discovery of the proton. -
Robert Millikan
Won a Nobel Prize for Physics thanks mainly to his oil drop experiment that allowed him to determine the actual mass of electrons which is 9.11 x 10^-24 g -
Henry Moseley
Henry Moseley was an English physicist, whose contribution to the science of physics was the justification from physical laws of the previous empirical and chemical concept of the atomic number. He essentially edited and finalized the modern periodic table -
Max Planck
Won the Nobel Prize for Physics in 1918 for his work and creation of the atomic theory that essentially stated how energy exists and works at the atomic and subatomic levels -
Niels Bohr
Received a Nobel Prize due to his work related to the structure of atoms, he provided a model for the atom that showed atoms formed by shells of electrons -
James Chadwick
Received a Nobel Prize in 1935 for his discovery of the neutron, he managed to prove the existence of these neutrons -
Werner Heisenberg
Werner Karl Heisenberg was a German theoretical physicist and one of the key pioneers of quantum mechanics. Quantum theory is the theoretical basis of modern physics that explains the nature and behavior of matter and energy on the atomic and subatomic level. Won the Nobel prize in physics. -
Erwin Schrodinger
Erwin Schrodinger was a Nobel Prize-winning Austrian physicist who developed a number of fundamental results in the field of quantum theory, which formed the basis of wave mechanics.
