CH05 -Modeling

Dates

• P1 – Tuesday, September 6th
• P3 – Wednesday, September 7th
• P4 – Wednesday, September 7th

Class Business

• turn-in homework
• brief questions

Outside Activity on the Circle

Part A – Gold Foil Experiment

• what is the scale?
• (true vs scaled distances)
• locate nucleus
• locate electrons
• shoot particles at the nucleus
• track data for “success”
• observations? conclusions?

Part B – Modern Theory

• students asisgned different roles
• neutrons, protons, electrons
• electrons have different energy
• observe movement
• where is the atom?
• what conclusions do we draw?
• does this match our experience of matter?

Homework

• No homework