1. Physical Science Goal 5A Test Review Technique 1 Flash Cards

2. Solid Sphere Atomic Model Dalton

3. Plum Pudding Model Thomson

4. Planetary Model Bohr

5. Discovered electron Thomson

6. What was C.R.T. used for? Thomson used to discover electrons and they are negative. e-

7. Gold Foil Experiment Scientist Rutherford

8. Nucleus is 1…. 2…. Small +

9. Atom is mostly Empty space

10. WHY did only 1 of every 20,000 alpha particles bounce back when shot through the gold foil? Atom mostly empty space

11. What is charge of an electron? -

12. What is charge on a nucleus (proton) +

13. The one Dalton postulate that was disproved Atoms can not be broken down to smaller pieces.

14. Total number of electrons on each of the first three energy levels of Bohr’s Model. 2 8 18

15. Bohr’s Model: which energy shell has the lowest energy? Inside (1 st )

16. Bohr’s Model: energy level with the highest energy level? Outer most

17. How can an electron jump from lower to higher energy shell? Gain a quantum of energy

18. What happens when an electron jumps from a higher to a lower energy level? Gives off a quantum of energy

19. An electron exists in the area of highest probability… (atomic model?) Electron Cloud

20. The most currently accepted atomic model Electron cloud

21. Observation 1

22. Questions 2

23. Hypothesis 3

24. Experiment / Test 4

25. Analysis 5

26. Theory 6

27. Scientific Law 7

28. Yes Retest 8

29. NO Revise Hyp. 9

30. Scientific Method: Data Tables are located in the …. Experiment / Test

31. Scientific Method: Graphs are located in the… Analysis

32. Dalton

33. Thomson

34. Rutherford

35. Bohr

36. Electron Cloud - Schrodinger