1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 FAMOUS SCIENTISTS ATOMIC MASS ATOMIC NUMBER ATOMIC STRUCTURE CHAPTER 3 TERMS

2. IN 400 BC HE CAME UP WITH THE IDEA OF THE ATOM

3. WHO IS DEMOCRITUS

4. HE DESCRIBED BEHAVIORS OF MATTER IN AN ATOMIC THEORY

5. WHO IS JOHN DALTON

6. HE GAVE PROOF OF THE ELECTRON THROUGH HIS EXPERIMENTS WITH CATHODE RAYS

7. WHO IS J.J THOMPSON

8. HIS GOLD FOIL EXPERIMENT CONCLUDED 1.THERE IS A DENSE POSITIVE CENTER OF AN ATOM 2. THE ATOM IS MOSTLY EMPTY SPACE 3. ELECTRONS TRAVEL IN EMPTY SPACE

9. WHO IS ERNEST RUTHERFORD

10. HIS STATEMENT THAT ATOMS CANNOT BE CREATED OR DESTROYED WAS LATER PROVEN WRONG BY THE DISCOVERY OF ELECTRONS

11. WHO IS JOHN DALTON

12. MAGNESIUM HAS 12 NEUTRONS WHEN THE ATOMIC MASS IS THIS

13. WHAT IS 24

14. ALUMINUM HAS 15 NEUTRONS WHEN ITS ATOMIC MASS IS THIS

15. WHAT IS 28

16. DAILY DOUBLE

17. ZINC HAS 31 NEUTRONS WHEN THE ATOMIC MASS IS THIS

18. WHAT IS 61

19. HOLMIUM HAS 70 NEUTRONS WHEN THE ATOMIC MASS IS THIS

20. WHAT IS 137

21. EINSTEINIUM HAS 98 NEUTRONS WHEN ITS ATOMIC MASS IS THIS

22. WHAT IS 197

23. BORON HAS 5 PROTONS AND THE ATOMIC NUMBER OF THIS

24. WHAT IS 5

25. THIS IS ATOMIC NUMBER 1 ON THE PERIODIC TABLE OF ELEMENTS

26. WHAT IS HYDROGEN

27. THE ATOMIC NUMER IS THIS 13 P 13 N

28. WHAT IS 13

29. THE ATOMIC NUMBER OF THE ABOVE ATOM IS THIS 29 P 31 N

30. WHAT IS 29

31. THE ATOMIC NUMBER OF AN ATOM IS DETERMINED BY THE NUMBER OF THIS SUBATOMIC PARTICLES

32. WHAT ARE PROTONS

33. IT IS A SUBATOMIC PARTICLE FOUND IN THE NUCLEUS OF AN ATOM THAT HAS NO CHARGE

34. WHAT IS A NEUTRON

35. IT IS THE NEGATIVELY CHARGED SUBATOMIC PARTICLE THAT IS FOUND IN THE EMPTY SPACE OF THE ATOM

36. WHAT IS THE ELECTRON

37. IT IS A SUBATOMIC PARTICLE THAT HAS A POSITIVE CHARGE

38. WHAT IS A PROTON

39. THE ATOM IS ELECTRICALLY NEUTRAL BECAUSE THE NUMER OF ELECTRONS EQUALS THE NUMBER OF THESE

40. WHAT ARE PROTONS

41. IT IS THE DENSE POSITIVELY CHARGED CENTER OF AN ATOM

42. WHAT IS THE NUCLEUS

43. THE UNIT THAT THE MASS OF AN ATOM IS MEASURED IN

44. WHAT IS THE ATOMIC MASS UNIT (AMU)

45. IT IS A MEASURE OF THE AMOUNT OF MATTER

46. WHAT IS MASS

47. AVERAGE OF ATOMIC MASSES OF THE ISOTOPES OF AN ELEMENT

48. WHAT IS AVERAGE ATOMIC MASS

49. THEY ARE ATOMS OF THE SAME ELEMENT THAT HAVE DIFFERENT ATOMIC MASSES

50. WHAT ARE ISOTOPES

51. IT IS THE LAW THAT STATES MASS CANNOT BE CREATED OR DESTROYED

52. WHAT IS THE LAW OF CONSERVATION OF MASS