1. History of the Atomic Model
Review for Quiz

2. Match the Atomic Model to the Person who designed the model.
Use the Models Above
Niels Bohr
John Dalton
Ernst Rutherford
J.J. Thomson

3. Niels Bohr - D
John Dalton - A
Ernst Rutherford - C
J.J. Thomson - B

4. Use the Models Above
James Chadwick
Murray Gell- Mann and George Zweig
Erwin Schrodinger

5. James Chadwick - A
Murray Gell- Mann and George Zweig - C
Erwin Schrodinger - B

6. Dalton devised the first modern atomic model
Dalton devised the first modern atomic model. Which one of the following characteristics is NOT part
of Dalton's atomic model?
Atoms of different elements are different.
All atoms of the same element are identical.
Atoms combine to form compounds.
Atoms consist of positive particles and negative particles.

7. Dalton devised the first modern atomic model
Dalton devised the first modern atomic model. Which one of the following characteristics is NOT part
of Dalton's atomic model?
Atoms of different elements are different.
All atoms of the same element are identical.
Atoms combine to form compounds.
Atoms consist of positive particles and negative particles.

8. The scientist who discovered the neutron was __________.
a. Chadwick
b. Rutherford
c. Thomson

9. The scientist who discovered the neutron was __________.
a. Chadwick
b. Rutherford
c. Thomson

10. The British scientist who conducted experiments using alpha particles on a thin gold foil and said that an atom has a dense positive center called the ‘nucleus’.
a. Thomson
b. Rutherford
c. Dalton

11. The British scientist who conducted experiments using alpha particles on a thin gold foil and said that an atom has a dense positive center called the ‘nucleus’.
a. Thomson
b. Rutherford
c. Dalton

12. The scientist who proposed the ‘solar system model of an atom where the electrons revolve around the nucleus much like the planets revolve around the sun.
a. Bohr
b. Rutherford
c. Thomson

13. The scientist who proposed the ‘solar system model of an atom where the electrons revolve around the nucleus much like the planets revolve around the sun.
a. Bohr
b. Rutherford
c. Thomson

14. The British scientist who proposed the ‘plum pudding model of the atom.
Thomson
Rutherford
Dalton

15. The British scientist who proposed the ‘plum pudding model of the atom.
Thomson
Rutherford
Dalton

16. The British scientist who discovered the electron.
a. Thomson
b. Rutherford
c. Dalton

17. The British scientist who discovered the electron.
a. Thomson
b. Rutherford
c. Dalton

18. The British scientist who believed that atoms are ‘indivisible”.
a. Thomson
b. Rutherford
c. Dalton

19. The British scientist who believed that atoms are ‘indivisible”.
a. Thomson
b. Rutherford
c. Dalton

20. The Greek Philosopher who called the smallest particle of matter as ‘atom’.
a. Bohr
b. Democritius
c. Rutherford

21. The Greek Philosopher who called the smallest particle of matter as ‘atom’.
a. Bohr
b. Democritius
c. Rutherford

22. The fixed circular paths around the nucleus are called_________.
a. orbits
b. orbitals
c. cloud for electrons

23. The fixed circular paths around the nucleus are called_________.
a. orbits
b. orbitals
c. cloud for electrons

24. When alpha particles are used to bombard gold foil, most of the alpha particles pass through undeflected.
This result indicates that most of the volume of a gold atom consists of ____.
a. clouds of dust
b. neutrons
c. protons
d. empty space

25. When alpha particles are used to bombard gold foil, most of the alpha particles pass through undeflected.
This result indicates that most of the volume of a gold atom consists of ____.
a. clouds of dust
b. neutrons
c. protons
d. empty space

26. Which of the following is / are deduced from the Rutherford’s scattering experiment?
(1) There are neutrons inside the nucleus.
(2) α particles are helium nucleus.
(3) Most of the mass is concentrated at the center of atom.
a. (3) only
b. (1) and (2) only
c. (2) and (3) only
d. (1), (2) and (3)

27. Which of the following is / are deduced from the Rutherford’s scattering experiment?
(1) There are neutrons inside the nucleus.
(2) α particles are helium nucleus.
(3) Most of the mass is concentrated at the center of atom.
a. (3) only
b. (1) and (2) only
c. (2) and (3) only
d. (1), (2) and (3)

28. According to Rutherford’s atomic model, if a large classroom represents an atomic size, which of the following objects best represent the size of a nucleus?
a. A basketball
b. A baseball
c. A ping-pong ball
d. A marble

29. According to Rutherford’s atomic model, if a large classroom represents an atomic size, which of the following objects best represent the size of a nucleus?
a. A basketball
b. A baseball
c. A ping-pong ball
d. A marble

30. What subatomic particle represents the "plums" or the "chips?“
a. protons
b. neutrons
c. electrons

31. What subatomic particle represents the "plums" or the "chips?“
a. protons
b. neutrons
c. electrons

32. Aristotle said that everything is divided into four___________.
a. molecules
b. elements
c. protons

33. Aristotle said that everything is divided into four___________.
a. molecules
b. elements
c. protons

34. The idea that the atom was composed of subatomic particles is about _
The idea that the atom was composed of subatomic particles is about _?_ old.
a. one thousand years
b. a decade
c. a century
d. two thousand

35. The idea that the atom was composed of subatomic particles is about _
The idea that the atom was composed of subatomic particles is about _?_ old.
a. one thousand years
b. a decade
c. a century
d. two thousand

36. Arrange the particles in the order in which they were discovered, from earliest to latest.
a. electrons, neutrons, protons, quarks
b. electrons, protons, neutrons, quarks
c. protons, electrons, neutrons, quarks
d. quarks, protons, electrons, neutrons

37. Arrange the particles in the order in which they were discovered, from earliest to latest.
a. electrons, neutrons, protons, quarks
b. electrons, protons, neutrons, quarks
c. protons, electrons, neutrons, quarks
d. quarks, protons, electrons, neutrons

38. The literal translation to English of the Greek word “atomos (ατομως)” is…
a. Particle
b. Indivisible
c. Tiny
d. Anti‐æther

39. The literal translation to English of the Greek word “atomos (ατομως)” is…
a. Particle
b. Indivisible
c. Tiny
d. Anti‐æther

40. a. Democritus, Dalton, Thomson, Chadwick, Bohr, Rutherford
Which of the following best captures the chronological order of the development of atomic theory up to the “Nuclear Model” theory?
a. Democritus, Dalton, Thomson, Chadwick, Bohr, Rutherford
b. Democritus, Dalton, Thomson, Rutherford, Bohr, Chadwick
c. Democritus, Thomson, Chadwick, Dalton, Rutherford, Bohr
d. Democritus, Thomson, Dalton, Chadwick, Bohr, Rutherford

41. Which of the following best captures the chronological order of the development of atomic theory up to the “Nuclear Model” theory?
a. Democritus, Dalton, Thomson, Chadwick, Bohr, Rutherford
b. Democritus, Dalton, Thomson, Rutherford, Bohr, Chadwick
c. Democritus, Thomson, Chadwick, Dalton, Rutherford, Bohr
d. Democritus, Thomson, Dalton, Chadwick, Bohr, Rutherford

42. Who discovered that atoms have quarks?
a. Murray Gell-Mann
b. James Chadwick
c. Erwin Schrodinger
d. Neils Bohr

43. Who discovered that atoms have quarks?
a. Murray Gell-Mann
b. James Chadwick
c. Erwin Schrodinger
d. Neils Bohr

44. The region outside the nucleus where electrons can most probably be found is the
electron configuration.
outer nucleus.
orbit.
d. electron cloud

45. The region outside the nucleus where electrons can most probably be found is the
electron configuration.
outer nucleus.
orbit.
d. electron cloud

46. According to Bohr, electrons cannot reside at ____ in the figure above.
a. point A
b. point B
c. point C
d. point D

47. According to Bohr, electrons cannot reside at ____ in the figure above.
a. point A
b. point B
c. point C
d. point D

48. According to the quantum theory, point D in the figure above represents
the fixed position of an electron.
the farthest point from the nucleus where an electron can be found.
a position where an electron probably exists.
d. a position where an electron cannot exist

49. According to the quantum theory, point D in the figure above represents
the fixed position of an electron.
the farthest point from the nucleus where an electron can be found.
a position where an electron probably exists.
d. a position where an electron cannot exist

50. Which model of the atom explains the orbitals of electrons as waves?
a. the Bohr model
b. the quantum model
c. Rutherford's model
d. Planck's theory

51. Which model of the atom explains the orbitals of electrons as waves?
a. the Bohr model
b. the quantum model
c. Rutherford's model
d. Planck's theory