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Democritus
He was one of the first people to discover something about the atom. He stated that all matter is made up of atoms. He also stated that atoms are eternal and invisible and so small that they can't be divided, and they entirely fill up the space they're in. -
Isaac Newton
He proposed that we live in a mechanical universe with small solid masses in motion. -
John Dalton
He formed the atomic theory, which states that all matter is compossed of tiny, indestructible particles called atoms that are all alike and have the same atomic weight. He improved on Newton's theory by saying that the particles are indestructible. -
James Clerk Maxwell
He propsed electric and magnetic fields filled the void in the universe. -
E. Goldstein
He used a CRT to study "canal rays" which had electrical and magnetic properties opposite of an electron. He also found out the mass of a proton. -
J.J. Thomson
He was an English physicist who discovered the electron. He also developed the plum-pudding model of the atom. HIs gold-foil experiment fired alpha particles at gold foil. -
R.A. Millikan
He was a physicist from the US and he used Thomson's data and his own experiemtns to calculate the charge and mass of an electron. -
Ernest Rutherford
He used the results of his gold-foil experiment to state that all the mass of an atom was in a small positively-charged ball at the center of the atom. -
Schrodinger
He laid the foundation of the wave-mechanics approach to the quantum theory. His theory was based off of energy levels in the atom -
James Chadwick
He was an English physicist that discovered the neutron
