1. Warm-up! (11/3 and 6) On desk: Green Lab 6 WS, Atoms WS #2
Come get an article from me and READ QUIETLY!
Answer the questions at the end when you are done!
I’ll give you 10 minutes for this.

2. Making new elements! “Superheavy elements” = 103 neutrons +
Accelerate  Collide  Separate  Detect

3. Newest Elements (2016 summer!)

4. Newest Elements More on how they were found:
And, if you’re interested on how far this could go, see this article:

5. Homework/Lab 6 Questions?
Keys will be on Moodle, of course!

6. Isotopes Calculations Practice
Equation for (weighted average) atomic mass?

7. Let’s try one more
Calculate the atomic mass of potassium using the following data:

8. Lab 6 Debrief Stable and unstable isotopes
Which ones are HAPPY, which ones are not?
Show chart of stable atoms

9. Radioactivity! Things that are radioactive:
Bananas: Potassium 40, Rocks and fiestaware: U-238 and 235, Glow in the dark: H-3 (tritium)

10. Radioactivity – what happens?
Radioactive atoms try to become more stable by breaking apart into stable “pieces”

11. Practice Quiz! Real quiz next class!
Will be 30 points! Great chance to start off quarter 2 strong! STUDY!
When you are done, come get your homework from me and start working!

12. Radioactive Dating Activity - Laptops
Go to

13. If time: Nuclear Quest and WS!

14. Homework Day 5
Atoms WS #3
You should have already read in your book: pages
Big quiz next class (T/W)!
Scientists and their atomic models
Atoms, subatomic particles, isotopes, ions
Calculating average atomic mass
Element Memory (as always)