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He was the one that developed the concept "atom",
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He made the first atomic theory, also elements are made up of very small particles called atoms.
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Discover of the electron, of isotopes and inventor of the mass spectrometer.
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He show that atoms have "+" in the middle and that has many empty space between but also discovered the protons and nucleus.
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Contributed to the understanding of the atom and quantum mechanics.
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Schodinger used equations to described the like hood of finding an electron in certain position, also he described the electrons as waves with their probable location viewed as clouds.
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Was the one that discovered the existence of neutrons and the neutral particle that share the nucleus with the charged proton.
