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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.
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He proposed that we live in a mechanical universe with small solid masses in motion.
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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.
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He propsed electric and magnetic fields filled the void in the universe.
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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.
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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.
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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.
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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.
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He laid the foundation of the wave-mechanics approach to the quantum theory. His theory was based off of energy levels in the atom
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He was an English physicist that discovered the neutron
