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JOHN DALTON!! BREIF BIO • He was born September 6th, 1766 in Eaglesfield in Cumberland. • He died on July 27th, 1844. • He was a chemist and physicist ATOMIC THEORY • John Dalton made an impact on the world as we know it. • According to Dalton, an element is composed of only one kind of atom, and a compound is composed of particles that are chemical combinations of different kinds of atoms. Dalton’s FOUR part atomic theory • 1) All elements are composed of tiny indivisible particles called atoms. • 2) Atoms of the same element are identical. • 3) Atoms of different elements can physically mix together or can chemically combine. • 4) Chemical reactions occur when atoms are separated, joined, or rearranged. EVIDENCE… • LAWS!!!! – Law of mass of conservation – Law of constant composition – Law of multiple proportions Created byyyyyyyyy: Sarah Oprondek Alex Evelsizer Lindsey Krippel Marisa Robertson