1. Do and Answer Draw a Bohr Model for Oxygen Hydrogen (twice) Using the drawing try to draw a Water Molecule. Define: atom, compound, molecule

2. Bohr Model

3. What is a Bohr Model? Shows all the protons, neutrons, and electrons contained within an atom. Protons and neutrons are drawn in the Nucleus. Electrons are drawn on ENERGY LEVELS or SHELLS or ELECTRON CLOUDS (the rings found around the nucleus).

4. Energy Levels Energy levels can only hold a certain amount of electrons. Energy LevelMaximum Number of Electrons 12 electrons 28 electrons 318 electrons 432 electrons 550 electrons

6. Practice Hydrogen

7. Practice Helium

8. Practice Magnesium

9. Finish the following alone: Sulfur Oxygen Copper Francium

10. How are electrons arranged in Atom? Complete for HOMEWORK! DUE TOMORROW FRIDAY

11. Bohr Model Quiz Energy LevelMaximum Number of Electrons 12 electrons 28 electrons 318 electrons

12. Question 1: Flourine Protons = 9 Electrons = 9 Neutrons = 5

13. Question 2: Magnesium Protons = 12 Electrons = 12 Neutrons = 12

14. More Practice Nitrogen

15. Calcium

16. In your notes: Make 3 circle maps for: Proton Neutron Electron

17. Energy Levels vs. Shells