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Discovery of atom - Coggle Diagram
Discovery of atom
400 B.C.- Democritus’ atomic theory posited that all matter is made up small indestructible units he called atoms.
1704- Isaac Newton theorized a mechanical universe with small, solid masses in motion.
1803- John Dalton proposed that elements consisted of atoms that were identical and had the same mass and that compounds were atoms from different elements combined together.
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