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Democritus's Ideas 1. Matter is composed of empty space through which atoms move 2. Atoms are solid, Homogeneous, indestructible, and indivisible
Democritus's Ideas 3. Different kinds of atoms have different sizes/shapes 4. The differing properties of matter are due to the size,shape, and movement of atoms 5. Apparent changes in matter result from changes in the groupings of atoms and not from changes in themselves
Aristotle 1. One of the most influential philosophers. 2. Wrote extensively on many subjects, including politics, ethics, nature, physics and astronomy 3. Most of his writings have been lost through the ages
Dalton's Atomic Theory 1.All matter is composed of extremely small particles called atoms 2. All atoms of a given element are identical, having the same size, mass, and chemical prop. Atoms of a specific element are diff. from those of any other element.
Dalton's Atomic Theory 3. Atoms cannot be created, divided into smaller particles, of destroyed. 4. Different atoms combine in simple whole-number ratios to form compounds. 5. In a chemical reaction, atoms are separated, combined and rearranged.
Created by: samz_clubb21