1. Directions: 1. Use the Periodic Table to find the Atomic Number (#) and Mass Units for that element. 2. Calculate the number of protons, electrons, and neutrons for that atom. There is a place to write these on each slide. 3. You will build a model for 8 elements: Hydrogen, Helium, Beryllium, Carbon, Oxygen, Neon, Chlorine, and Argon. 4. For each atom, use the mouse to click and slide each subatomic particle into place. 5. When moving the electrons, place the electrons in the first shell first, then the second, etc. The capacity for each shell is given. 6. You will build each element on a different slide. Each person in your group should build one atom with the rest of the group assisting 7. Save the show under your student number. (Save as…) Then you can run your show. 8. Now view the Show to see how it works. Read this slide before you run the PowerPoint show. here

2. For a sample of how to create an atomic model, CLICK HERE CLICK HERE.

3. Time to start building your models. Hit escape to leave “View” mode. You should be in “edit” mode from this point on, not viewing the show. When viewing a show, you cannot change any of the slides. If when you get to the model slides, you cannot see the subatomic particles, from the “View” drop down menu, hit “Zoom”. Lower the percentage that you are zoomed into.

4. Nucleus Electron shell 1 – capacity 2 Electron shell 2 – capacity 8 Electron shell 3 – capacity 8 Atomic # - 1 Atomic Mass – 1 # of Protons – 1 # of Electrons – 1 # of Neutrons - 0 1.Click and drag to move subatomic particles into place. 2.Go to the next slide when you are done. This chart is filled in for you on this one.

5. Nucleus Electron shell 1 – capacity 2 Electron shell 2 – capacity 8 Electron shell 3 – capacity 8 Atomic # - 6 Atomic Mass – 12 # of Protons – 6 # of Electrons – 6 # of Neutrons - 6 Click and drag to move subatomic particles into place. The model is started. Fix it so it matches the chart below.

6. Nucleus Electron shell 1 – capacity 2 Electron shell 2 – capacity 8 Electron shell 3 – capacity 8 Atomic # - 2 Atomic Mass – 4 # of Protons – 2 # of Electrons – # of Neutrons – Click and drag to move subatomic particles into place. This chart is started for you. Finish it first. Check to See if you are correct: The number of particles in the nucleus should add up to the atomic mass. Both the # of protons and the # of electrons should be equal to the atomic number.

7. Nucleus Electron shell 1 – capacity 2 Electron shell 2 – capacity 8 Electron shell 3 – capacity 8 Atomic # - 4 Atomic Mass – 9 # of Protons – # of Electrons – # of Neutrons - Click and drag to move subatomic particles into place. This chart is started for you. Finish it first. Check to See if you are correct: The number of particles in the nucleus should add up to the atomic mass. Both the # of protons and the # of electrons should be equal to the atomic number.

8. Nucleus Electron shell 1 – capacity 2 Electron shell 2 – capacity 8 Electron shell 3 – capacity 8 Atomic # - Atomic Mass – # of Protons – # of Electrons – # of Neutrons - Click and drag to move subatomic particles into place. Complete the chart below before you start moving particles.

9. Nucleus Electron shell 1 – capacity 2 Electron shell 2 – capacity 8 Electron shell 3 – capacity 8 Atomic # - Atomic Mass – # of Protons – # of Electrons – # of Neutrons - Click and drag to move subatomic particles into place. Complete the chart below before you start moving particles.

10. Nucleus Electron shell 1 – capacity 2 Electron shell 2 – capacity 8 Electron shell 3 – capacity 8 Atomic # - Atomic Mass – # of Protons – # of Electrons – # of Neutrons - Click and drag to move subatomic particles into place. Complete the chart below before you start moving particles.

11. Nucleus Electron shell 1 – capacity 2 Electron shell 2 – capacity 8 Electron shell 3 – capacity 8 Atomic # - Atomic Mass – # of Protons – # of Electrons – # of Neutrons - Click and drag to move subatomic particles into place. Complete the chart below before you start moving particles.

12. To save this file, click “Save as..”, and save it under your number. You can then view your models.

13. Nucleus Electron shell 1 – capacity 2 Electron shell 2 – capacity 8 Electron shell 3 – capacity 8 Atomic # - Atomic Mass – # of Protons – # of Electrons – # of Neutrons - Click and drag to move subatomic particles into place. Atomic # - 5 Atomic Mass – 11 # of Protons – 5 # of Electrons – 5 # of Neutrons - 6 This is what a Boron atom looks like. Keep clicking to see the atomic model assemble. If this information is not filled out first and correctly, your model will be wrong. Count the number of particles in the nucleus. What do you get? It will always be the atomic mass – 11 for Boron.

14. Click here to return to the directions.here