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Everything is composed of atoms, which are physically, not geometrically, invisible. He said that between atoms there is ann open space inbetween.
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He believed that the sun, stars, and planets were all made of atoms
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They saw matter, as made up of three elements.
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He proposed that some substances couldnt be broken down any further by chemical method.
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He proposed the combustion theory.
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He preformed a number of experiments that led to the acceptance of the atom.
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He developed the first periodic tabe
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The Curies founded Uranium
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He provided the first hint that atoms are made of even smaller particles.
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He mathematically proved the existence of atoms.
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He discovered electrons circling around the nucleus.
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He rearenged the atomic table by reararanging by atomic number.
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He developed an explanation of atomic structure that underlies regularities of the periodic table of elements. His atomic model had atoms built up sucessive orbital shells of electrons.
