1. QQ:
1. Atom B has a mass of 42 and an atomic number of 20. How many protons, electrons, and neutrons does it have?
2. Atom K has 15 electrons and 10 neutrons. What is its atomic number and atomic mass?
3. An atom with 64 protons has an atomic mass of 64. What is its atomic number? How many electrons and neutrons does it have?

2. Objective: I understand the nature and behavior of an atom’s structure.

3. 97.5%
Zinc
95% Cu

4. A Weird and Wondrous Place

5. Notice the beads in your tub are two different sizes.
The balloons are also different sizes.
Put the large beads in the smallest balloon. Put a tiny bit of air into the small balloon and tie a knot.

6. Place the small beads in the large balloon.

7. Place the small balloon inside the larger balloon
and blow it up.

8. SHAKE IT UP!!!!

9. HOW COULD THIS BALLOON MODEL AN ATOM?
WHAT WOULD REPRESENT THE NUCELUS?
WHAT PART WOULD BE AN ELECTRON?

10. WHAT WAS SHOWN
BY THE SHAKING
OF THE BALLOON?
WHICH MODEL
OF THE ATOM
IS THIS?

11. Story of Atoms

13. Assignment:
Make an article that would be printed in a newspaper of the time announcing the latest development in
atomic theory.
Year
Explain the theory
Scientist(s) involved in development
Summary of previous theories
Picture(s)