1) Born in Abdera, Greece in 460BC and died at the age of 90.
2) His mentor, Leucippus, originally came up with atomic theory that later was adopted by Democritus.
All matter consists of invisible particles called atoms.
Atoms differ in size, shape, mass, position, and arrangment. They are also indestructible and invisible.
Solids are made of small pointy atoms that allow them to hold together and liquids are made of larger round atoms that can slide by eachother.
His model of an atom had no protons, neutrons, or electrons.
Atoms are no longer indestructible and they are now visible using advanced microscopes.
Atoms really have protons, electrons, neutrons.
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Public - 9/13/16, 5:17 PM