2. The basic building blocks of ordinary matter Join together to form molecules, which form most of the objects around you. Made up of protons, neutrons and electrons Extremely small particles What is an Atom?

3. Any atoms that are connected by chemical bonds Every combination of atoms is a molecule If the atoms are different elements, the molecule is called a compound. The smallest particle that has the chemical properties of that substance. What is a Molecule?

4. A Video to Explain More: Atoms and Molecules

5. Atom or Molecule???

6. Oxygen - O 2

7. Mercury - Hg

8. Water – H O 2

9. Laughing Gas – N O 2

10. Diamonds - C

11. Bleach - NaClO

12. Baking Soda – NaHCO 3

13. Vinegar – CH COOH 3

14. Gold - Au

15. Sugar Glucose – C H O 6 6 12

16. Hydrogen Peroxide – H O 2 2

17. Neon - Ne

18. What are other substances you might have wondered about???

19. Pom Pom Practice Using pom poms, create a “model” of a molecule with the information provided! After you have made your guess, check for accuracy and fix your model if needed.

20. Sulfuric Acid H SO 2 4 Hydrogen = White Sulfur = Green Oxygen = Red

21. Sulfuric Acid H SO 2 4 Hydrogen = White Sulfur = Green Oxygen = Red

22. Ammonia NH 3 Hydrogen = White Nitrogen = Blue

23. Ammonia NH 3 Hydrogen = White Nitrogen = Blue

24. Carbon Dioxide CO 2 Carbon = Black Oxygen = Red

25. Carbon Dioxide CO 2 Carbon = Black Oxygen = Red

26. Chlorine Cl 2 Chlorine = Green

27. Chlorine Cl 2 Chlorine = Green

28. Ethylene C H 2 4 Carbon = Black Hydrogen = White

29. Ethylene Carbon = Black Hydrogen = White C H 2 4

30. Methane C H 4 Carbon = Red Hydrogen = Blue

31. Methane C H 4 Carbon = Red Hydrogen = Blue

32. San Nicholodium Carbon = Red Hydrogen = Green Oxygen = White C H O 7 1 6

33. San Nicholodium Carbon = Red Hydrogen = Green Oxygen = White C H O 7 1 6