Week of 1/27

Last week we only had 2 days of school and one of them was short due to a 2 hour delay! Yay for snow days! On Thursday we did went over questions on the practice test and Friday I was out for most of the class so you worked on homework problems or the practice test.

Monday: Today was the acid-base test day.

Homework is to read sections 2.1 to 2.3 and watch the video on atomic emission spectroscopy:


Tuesday:  History of atomic structure notes.  Here’s some of the videos I used.

Homework: Work on PES (Photoelectron Spectroscopy) packet, check atomic structure/ periodic trends review and let me know if there is anything you don’t know…otherwise – I expect you to know everything on there.

Videos from Class

Wednesday: Today we did a bit of review of basics for those of you that needed a refresher and then launched in to the Bohr model lab.  The point was to see how we can use the wavelengths given off by hydrogen to determine the energy level transitions that caused them. This evidence supported the idea that electrons exist in energy levels.  Today was short b/c of a snow delay so more of the analysis is HW now.   Labs will be graded on Monday. Turn them in by beginning of class Monday.

Here’s today’s notes.

Thursday: Today we went over periodic trends.  We started with Coulomb’s law and discussed atomic radius, ionic radius and ionization energy.  I had you write answers to certain questions that you’d turn in for feedback. For all but ionic radius, check out videos here for help. HW: finish PES packet and Bohr Model lab.

Friday: Worked on PES packet in group. At the end you all turned one in and I would pick one randomly to grade.  HW: rewrite electron affinity trend and do AP practice test problems.