1. Earth Air Fire Water History of the Atom Chemistry I
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3. Atomic Model Timeline --------------- 400 BC: Democritus ----------------1803: Dalton ----------------1861: William Crookes ----------------1886: Eugen Goldstein ----------------1900: Max Planck ----------------1904: Thompson ----------------1911: Ernest Rutherford ----------------1915: Niels Bohr ----------------1925: Werner Heisenberg ----------------1926: Erwin Schrodinger ----------------1927: Louis de Brogile ----------------1932: James Chadwick