Chemistry Honors – Classes 29 & 30

Dates

• Period B: Tuesday, March 10th & Wednesday, March 11th
• period D: Tuesday, March 10th & Thursday, March 12th
• Period G: Wednesday, March 11th & Thursday, March 12th

Recap of Activity

• what did we see with spectrum tubes?
• what was same about each? different?
• this was evidence that changed science > 100 years ago

New Idea – Quantum Mechanics

• How to explain lines? QUANTIZATION
• light emitted when transitioning between levels
• LINES = discrete levels
• SAME LINES = same levels for each element
• DIFFERENT LINES = different levels for each element
• Level Number = principal quantum number
• Smart people figured out how to predict light

Light Energy and Wavelength

• formulas
• units

Activity

• create the light spectrum for Hydrogen
• H-spectrum
• RESULT = drawing the line spectrum of Hydrogen
• you will submit this on PAPER with appropriate supporting work
• Note – you only need to show one example of each type of calculation
• Note – this is NOT A LAB REPORT