1. Atom History

2. First, fold your paper in half like this.
Not this.

3. Do not write these numbers on your flaps!
You need five “flaps.” 1
To cut “flaps,” cut only the top half of the folded paper. 2 3 4
Do not write these numbers on your flaps! 5

4. Quantum Mechanical Model
Solid Sphere Model
Plum Pudding Model
Nuclear Model
Planetary Model
Quantum Mechanical Model

5. 1
Dalton 2 3 4 5

6. smallest unit of matter1 2
smallest unit of matter
no protons, neutrons, or electrons present 3 4 5

7. cathode ray tube experiment1
Thomson 2
cathode ray tube experiment 3 4 5 7

8. electrons embedded in positively charged matter1 2
electrons embedded in positively charged matter 3 4 5 8

9. 1 2
Rutherford 3
gold foil experiment 4 5 9

10. small positively charged nucleus electrons fixed outside nucleus1 2 3
small positively charged nucleus
electrons fixed outside nucleus
remainder of atom is empty space 4 5 10

11. 1 2
Bohr 3 4 5 11

12. small positively charged nucleus1 2
small positively charged nucleus
negative electrons move in fixed orbits outside nucleus 3 4 5 12

13. 1 2
Heisenberg
Schrödinger
deBroglie 3 4 5 13

14. small positively charged nucleus1 2 3
small positively charged nucleus
electrons localized to orbitals 4 5 14