is all matter made up of water? → matter made up of 4 fundamental elements Thale’s followers: earth, fire, air and water → (~350 BC): matter made up from small, indivisible particles Democritus atoms Example: What happens if a piece of metal is cut into smaller and smaller pieces? Ans: if matter is continuous, piece is infinitely divisible at some stage reach immutable atoms (indivisible) Democritus: of Samos (342-270BC): expanded idea of atomism Epicurus Snag: atomism disputed by and Plato Aristotle matter continuous, made up of four elementary principles hotness, coldness, dryness and wetness 2. The chemistry of the elements observations on combustion suggested that matter Lavoisier (1734-1794): comprised discrete elements, and that matter was conserved in chemical reactions the chemical elements hydrogen, oxygen, carbon, sodium etc
→ is all matter made up of water? Thale’s followers: matter made up of 4 fundamental elements → earth, fire, air and water Democritus (~350 BC): matter made up from small, indivisible particles atoms Example: What happens if a piece of metal is cut into smaller and smaller pieces? Ans: if matter is continuous, piece is infinitely divisible Democritus: at some stage reach immutable atoms (indivisible) Epicurus of Samos (342-270BC): expanded idea of atomism Snag: atomism disputed by Plato and Aristotle matter continuous, made up of four elementary principles hotness, coldness, dryness and wetness 2. The chemistry of the elements Lavoisier (1734-1794): observations on combustion suggested that matter comprised discrete elements, and that matter was conserved in chemical reactions the chemical elements hydrogen, oxygen, carbon, sodium etc
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