1. Chemistry History Prof. Mabí Gutarra Uriol Prof. Mabí Gutarra Uriol

2. “Black Magic” Prehistoric Times - Beginning of the Christian Era 1700 BC – 300 BC

3. Aristotle Aristotle declares the existence of only four elements: fire, air, water and soil. All matter is made up of these four elements and matter had four properties: hot, cold, dry and wet. Aristotle declares the existence of only four elements: fire, air, water and soil. All matter is made up of these four elements and matter had four properties: hot, cold, dry and wet. Aristotle

4. Alchemy Beginning of the Christian Era - End of 17th Century 300 BC - 1700

5. Philosopher’s Stone Influenced greatly by Aristotle's ideas, alchemists attempted to transmute cheap metals to gold. The substance used for this conversion was called the Philosopher's Stone. Influenced greatly by Aristotle's ideas, alchemists attempted to transmute cheap metals to gold. The substance used for this conversion was called the Philosopher's Stone. Philosopher's Stone Philosopher's Stone

6. Elixir of life Alchemists not only wanted to convert metals to gold, but they also wanted to find a chemical concoction that would enable people to live longer and cure all ailments. This elixir of life never happened either. Alchemists not only wanted to convert metals to gold, but they also wanted to find a chemical concoction that would enable people to live longer and cure all ailments. This elixir of life never happened either.

7. The Skeptical Chemist The disproving of Aristotle's four-elements theory and the publishing of the book, The Skeptical Chemist (by Robert Boyle), combined to destroy this early form of chemistry The disproving of Aristotle's four-elements theory and the publishing of the book, The Skeptical Chemist (by Robert Boyle), combined to destroy this early form of chemistryRobert BoyleRobert Boyle

8. Traditional Chemistry 1700 - 1800

9. Dalton’s Atomic Theory John Dalton publishes his Atomic Theory which states that all matter is composed of atoms, which are small and indivisible. John Dalton publishes his Atomic Theory which states that all matter is composed of atoms, which are small and indivisible. John Dalton John Dalton

10. Modern Chemistry 1850 – 20th Century

11. Goldstein & Thomson Evidence of Protons, Electrons and Neutrons Evidence of Protons, Electrons and Neutrons

12. References “History of Chemistry”.Columbia University. Retrieved in 13/10/2011 from http://www.columbia.edu/itc/chemistry/chem-c2507/navbar/chemhist.html “History of Chemistry”.Columbia University. Retrieved in 13/10/2011 from http://www.columbia.edu/itc/chemistry/chem-c2507/navbar/chemhist.html

13. ATOM http://www.slideshare.net/Mr.Thurston/th e-atom-122592 http://www.slideshare.net/Mr.Thurston/th e-atom-122592 http://www.slideshare.net/Mr.Thurston/th e-atom-122592 http://www.slideshare.net/Mr.Thurston/th e-atom-122592