Monday, Sept. 29th, 2008: Atomic Structure

BIG IDEA: Elements are made of atoms with a particular number of protons, neutrons, and electrons. Elements in the same group react similarly.

1. Warm-up: Draw a picture of beryllium. Label the protons, neutrons, and electrons. Put the chemical symbol for beryllium underneath your drawing.
2. Return work, collect homework. Hand out homework worksheet, write down homework on H.A.S.
3. Address issues with work again: must correct work, must keep folder organized. Hand in folder for a grade.
4. Go over and correct worksheet, Building Atoms, pg. 47-49 in your textbook.
5. Introduce lab activity. Remind students what a nitrate is, and introduce ammonia (NH4).
6. Lab #3: Periodic Table Patterns in Group 2 Metals.
7. Honors Chem: Debrief lab; reading on discovery of neutron. Discuss. See websites:
http://www.chemcases.com/nuclear/nc-01.htm
http://www-outreach.phy.cam.ac.uk/camphy/neutron/neutron2_1.htm
Homework:
1) Pg. 49, text. 2) PT worksheet #3
Honors chem.: 3) Look up information about Rutherford’s gold foil experiment, come in with three things from what you found to share with the class.