1. Atomic Structure Final Examination Review

2. TRUE/FALSE

3. The elements in a row or period all have the same number of energy levels.
ANS: T

4. Columns going up and down are called families or groups
Columns going up and down are called families or groups. The elements in a group have the same chemical stability.
ANS: T

5. The term atom was first used by the:
Ethiopians
Greeks
British
Romans

6. ANS: B

7. The smallest particle that has all the properties of an element is a(n) _____:
Cell
Electron
Proton
atom

8. ANS: D

9. What are the fundamental particle of an atom?
quark, positron, negatron
nucleon, electron, proton
proton, neutron, electron
proton, neutron, quark

10. ANS: C

11. The chemical element is determined by the number of _____ in the atom:
Protons
Neutrons
Electrons
valence number

12. ANS: A

13. An atom in a normal state has an electrical charge of ____:1
Positive
Negative

14. ANS: A

15. The binding energies or energy levels of electrons are represented by their ______:
atomic numbers
atomic mass
shells
isotopes

16. When an atom has the same number of protons, but a different number of neutrons, it is called an _________:
Isomer
Isotope
Isobar
Isotone

17. ANS: B

18. When an atom has the same A, but a different number of protons, it is called an _________:
Isomer
Isototope
Isobar
Isotone

19. ANS: C

20. When atoms of various elements combine, they form _____.
Isotopes
Compounds
Molecules
Ions

21. ANS: C

22. When molecules of various elements combine, they form _____.
Isotopes
Compounds
Molecules
Ions

23. ANS: B

24. An atom that loses or gains one or more electrons is a(n) _____:
Isotope
Isobar
Isomer
Ion

25. ANS: D

26. The maximum number of electrons that can exist in an electron shell is calculated with the formula ____. 2x 2n
2n2
2/n2

27. ANS: C

28. An atom in a neutral state has the same number of ______ and electrons.
Quarks
Neutrons
valence e-
protons

29. ANS: D

30. The innermost electron shell is the ______-shell:K

31. ANS: D

32. The atomic number of an atom is symbolized with the letter ____:X Z n

33. ANS: C

34. The atomic mass of an atom is symbolized with the letter ____:X Z n

35. ANS: A

36. Two identical atoms that exist at different energy states are called ______:
Isomer
Isotope
Isobar
Isotone

37. ANS: A

38. During beta emission an atom releases ______:
Electrons
Photons
Protons
neutrons

39. ANS: A

40. The only difference between x-rays and gamma rays is their ________:
Energy
Source
Size
Name

41. ANS: B

42. Aluminum has an atomic number of 13. How many protons does it have?25 89
Need more info

43. ANS: A

44. The force of attraction between the nucleus and an orbital electron is called the electron ___:
Valence
Transition number
Binding energy
Nuclear energy

45. ANS: C

46. The chemical properties of an atom are primarily controlled by its:
number of protons
Number of neutrons
Atomic mass
Valence e-

47. ANS: A

48. An atom that loses an orbital electron from the electrical influence of the nucleus has undergone:
radioactive decay
Subluxation
Ionization
Covalent bond

49. ANS: C

50. A neutral atom that loses an electron by ionization is termed a:
negative atom
Positive atom
Negative ion
Positive ion

51. ANS: D

52. The chemical bonding when two or more atoms share electrons is termed:
ionic bonding
Polar bonding
Covalent bonding
Valence bonding

53. ANS: C

54. The octet rule states that the most chemically stable atoms have an outer shell configuration with:
Two e-
Three e-
Seven e-
Eight e-

55. ANS: D

56. About 99% of the atom’s mass is located within the:
orbital shell
K-shell
Nucleus
Alpha particle

57. ANS: C

58. The atomic particle which has a weight of 1amu and carries no charge is called a/an:
Proton
Neutron
Electron
photon

59. ANS: B

60. Nuclides having the same atomic number but different atomic masses are termed:
Isotones
Isotopes
Isobars
Isomers

61. ANS: B

62. Two or more chemicals with the same physical formula, but having different chemical properties, are termed:
Isotones
Isotopes
Isobars
Isomers

63. ANS: C

64. The force of attraction between the nucleus and an orbital electron is called the electron:
Valence
transition number
Binding energy
Valence number

65. ANS: C

66. The schematic display most often employed to represent the structure of the atom was developed by:
Charles Dalton
Neils Bohr
Micheal Crookes
Charles Darwin

67. ANS: B