democritus aristotle -400 b.c. - coined the term “atom” -384-322 b.c. - believed matter is...

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Development of the Atomic Model. 400 B.C. – Democritus He thought atoms were “un-cuttable” Also atoms are hard small particles

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Development of Atomic Theory 400 B.C. -Democritus was first to use the word : atom atomos meaning “indivisible” Aristotle (famous philosopher) disputed