BIG IDEA: Elements are created from other elements in very special circumstances.
1. Warm-up: Complete the equation: Th-230 decays into Ra-226; Pb-214 decays into Po-214.
2. Go over warm-up carefully; use it to explain the homework.
3. Review chemcatalyst on pg. 81 and work on questions 1-12 on the worksheet. Use your homework to help you get started.
4. Review answers to “Elementary Education.”
5. Review Big Idea and assign homework.
Homework: 1. Nuclear Decay Worksheet #2. 2. Don’t forget that the second run of your experiment is due Thursday.
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