Free Printable C1 - Review: Atomic History & Structure, Isotopes, Ions

1.

1. Matter is composed of tiny particles that are undividable.

a)

a. Democritus

b)

b. Thomson

c)

c. Dalton

d)

d. Rutherford

e)

e. Bohr

2.

2. Plum Pudding model.

a)

a. Democritus

b)

b. Thomson

c)

c. Dalton

d)

d. Rutherford

e)

e. Bohr

3.

3. Atoms of the same element are identical.

a)

a. Democritus

b)

b. Thomson

c)

c. Dalton

d)

d. Rutherford

e)

e. Bohr

4.

4. Discovered the electron.

a)

a. Democritus

b)

b. Thomson

c)

c. Dalton

d)

d. Rutherford

e)

e. Bohr

5.

5. Since neutral atoms contain negative electrons, they must also contain positive charges.

a)

a. Democritus

b)

b. Thomson

c)

c. Dalton

d)

d. Rutherford

e)

e. Bohr

6.

6. Used alpha particles to discover a small, dense, positive bundle in an atom.

a)

a. Democritus

b)

b. Thomson

c)

c. Dalton

d)

d. Rutherford

e)

e. Bohr

7.

7. Electrons can travel around the nucleus in orbits of certain energies.

a)

a. Democritus

b)

b. Thomson

c)

c. Dalton

d)

d. Rutherford

e)

e. Bohr

8.

8. found in the nucleus

a)

a. proton

b)

b. electron

c)

c. neutron

9.

9. responsible for the most of the mass of the atom

a)

a. proton

b)

b. electron

c)

c. neutron

10.

10. negatively charged

a)

a. proton

b)

b. electron

c)

c. neutron

11.

11. no charge (neutral)

a)

a. proton

b)

b. electron

c)

c. neutron

12.

12. the number of these identify the element

a)

a. proton

b)

b. electron

c)

c. neutron

13.

13. has a mass of 1 amu

a)

a. proton

b)

b. electron

c)

c. neutron

14.

14. makes up the atomic #

a)

a. proton

b)

b. electron

c)

c. neutron

15.

15. +1 charge

a)

a. proton

b)

b. electron

c)

c. neutron

16.

16. found outside the nucleus

a)

a. proton

b)

b. electron

c)

c. neutron

17.

17. ion formed when an atom loses an electron

a)

a. e- cloud

b)

b. proton

c)

c. electron

d)

e. cation

e)

f. ion

18.

18. the subatomic particle that changes in an ion

a)

a. e- cloud

b)

b. proton

c)

c. electron

d)

e. cation

e)

f. ion

19.

19. (Atomic mass) – (atomic number) = # of ___?____

a)

a. e- cloud

b)

b. proton

c)

c. electron

d)

d. neutron

e)

f. ion

20.

20. subatomic particle that never changes

a)

a. e- cloud

b)

b. proton

c)

c. electron

d)

d. neutron

e)

f. ion

21.

21. charged atom or group of atoms

a)

a. e- cloud

b)

b. proton

c)

e. cation

d)

f. ion

e)

g. atomic mass

22.

22. this changes in an isotope

a)

a. e- cloud

b)

b. proton

c)

c. electron

d)

d. neutron

e)

f. ion

23.

23. where electrons are found

a)

a. e- cloud

b)

b. proton

c)

c. electron

d)

d. neutron

e)

f. ion

24.

24. Atomic mass =

a)

31

b)

15

c)

-3

d)

30.974

e)

16

25.

25. atomic number =

a)

31

b)

15

c)

-3

d)

30.974

e)

16

26.

26. # of protons =

a)

31

b)

15

c)

-3

d)

30.974

e)

16

27.

27. # of electrons =

a)

18

b)

15

c)

-3

d)

12

e)

16

28.

28. # of neutrons =

a)

18

b)

15

c)

31

d)

12

e)

16

29.

29. atomic mass =

a)

40

b)

20

c)

40.078

d)

10

30.

30. atomic number =

a)

40

b)

20

c)

40.078

d)

10

31.

31. # of protons =

a)

40

b)

20

c)

40.078

d)

10

32.

32. # of electrons =

a)

40

b)

20

c)

40.078

d)

10

33.

33. # of neutrons =

a)

40

b)

20

c)

40.078

d)

10

34.

34.The atomic mass of a particular isotope of Na is 23. Its atomic number is 11. How many protons are in this isotope?

a)

23

b)

11

c)

22.990

d)

12

35.

34.The atomic mass of a particular isotope of Na is 23. Its atomic number is 11. How many electrons are in this isotope?

a)

23

b)

11

c)

22.990

d)

12

36.

34.The atomic mass of a particular isotope of Na is 23. Its atomic number is 11. How many neutrons are in this isotope?

a)

23

b)

11

c)

22.990

d)

12

37.

35. How does an atom form a cation?

a)

when it loses electrons

b)

when it loses neutrons

c)

when it gains electrons

d)

when it gains neutrons

38.

35. How does an atom form an anion?

a)

when it loses electrons

b)

when it loses neutrons

c)

when it gains electrons

d)

when it gains neutrons

39.

35. How many electrons are in a lithium ion (Li+)?

a)

6.941

b)

7

c)

3

d)

4

e)

2

40.

35. How many protons are in a lithium ion (Li+)?

a)

6.941

b)

7

c)

3

d)

4

e)

2

41.

36. Which element has 8 protons?

a)

beryllium

b)

nitrogen

c)

oxygen

d)

florine

42.

36.Can atoms of the same element have a different number of protons?

a)

yes, when it becomes an ion

b)

yes, when it becomes an isotope

c)

no, the number of protons never change

43.

37. Define isotope -

a)

an electrically neutral atom with the same number of protons and electrons

b)

an atom or group of atoms that have an electrical charge by gaining or losing electrons

c)

atoms of the same element have different amounts of neutrons

d)

the total number of protons plus neutrons in the nucleus

e)

the number of protons in an atom

44.

37. Define mass number -

a)

an electrically neutral atom with the same number of protons and electrons

b)

an atom or group of atoms that have an electrical charge by gaining or losing electrons

c)

atoms of the same element have different amounts of neutrons

d)

the total number of protons plus neutrons in the nucleus

e)

the number of protons in an atom

45.

37. Define atomic number -

a)

an electrically neutral atom with the same number of protons and electrons

b)

an atom or group of atoms that have an electrical charge by gaining or losing electrons

c)

atoms of the same element have different amounts of neutrons

d)

the total number of protons plus neutrons in the nucleus

e)

the number of protons in an atom

46.

38. Write the symbol for the atom/ion with: a. 10 p, 10 e-, 12 n

a)

B (boron)

b)

C (carbon)

c)

Ne (neon)

d)

Mg (magnesium)

47.

38. Write the symbol for the atom/ion with: b. 35 p, 36 e-, 40 n

a)

Cl (chlorine)

b)

Zr (zirconium)

c)

Kr (krypton)

d)

Br (bromine)

48.

38. Write the symbol for the atom/ion with: c. 20 p, 18 e-, 20 n

a)

Ca (calcium)

b)

Ne (neon)

c)

Ar (argon)

d)

F (florine)

49.

39. Which part of the atom contains nearly all of the atom’s mass?

a)

proton

b)

neutron

c)

electron

d)

nucleus

e)

electron region or "electron cloud"

50.

40. In nature, 94.72% of all bromine exists as Br-80, 2.82% exists as Br-79, 2.41% exists as Br-81, and 0.05% exists as Br-78. Based on this data, calculate the average atomic mass of bromine.

a)

79.9949 amu

b)

117.965 amu

c)

121.475 amu

d)

7999.49 amu

51.

41 – 55: Mass of Oxygen-18

a)

8

b)

15.999

c)

16

d)

18

52.

41 – 55: Number of Neutrons of Oxygen-18

a)

8

b)

10

c)

16

d)

18

53.

41 – 55: Number of Electrons of Oxygen-18

a)

8

b)

10

c)

16

d)

18

54.

41 – 55: Which atom has atomic number 16?

a)

Oxygen-16

b)

Sulphur-16

c)

Sulphur-32

d)

Sulphur-35

55.

41 – 55: Number of Protons for Sulphur-35

a)

16

b)

19

c)

32

d)

35

56.

41 – 55: Number of Neutrons for Sulphur-35

a)

16

b)

19

c)

32

d)

35

57.

41 – 55: Atomic Number for Phosphorus-32

a)

15

b)

17

c)

31

d)

32

58.

41 – 55: Mass for Phosphorus-32

a)

15

b)

17

c)

31

d)

32

59.

41 – 55: Number of Electrons for Phosphorus-32

a)

15

b)

17

c)

31

d)

32

60.

41 – 55: Mass for Al⁺³

a)

13

b)

24

c)

27

d)

30

61.

41 – 55: Number of Protons for Al⁺³

a)

10

b)

13

c)

16

d)

27

62.

41 – 55: Number of Electrons for Al⁺³

a)

10

b)

13

c)

16

d)

27

63.

41 – 55: Atomic Number for F^-1

a)

8

b)

9

c)

10

d)

18

e)

19

64.

41 – 55: Mass for F^-1

a)

8

b)

9

c)

18

d)

19

e)

20

65.

41 – 55: Number of Protons for F^-1

a)

8

b)

9

c)

10

d)

18

e)

19

66.

41 – 55: Number of Electrons for F^-1

a)

8

b)

9

c)

10

d)

18

e)

19

C1 - Review: Atomic History & Structure, Isotopes, Ions

Total questions: 66

Worksheet time: 33mins

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