Free Printable C05 Atomic & Mass Number

1.

What is the atomic number?

a)

the number of protons

b)

the number of protons and neutrons

c)

the number of neutrons

d)

the number of protons and electrons

e)

the number of electrons and neutrons

2.

Match the following

a)

Oxygen-17

1.

8 p⁺

9 n

b)

Oxygen-21

2.

8 p⁺

13 n

c)

Oxygen-18

3.

8 p⁺

10 n

d)

Oxygen-20

4.

8 p⁺

12 n

e)

Oxygen-16

5.

8 p⁺

8 n

3.

What is the atomic number of this nucleus?

a)

1

b)

3

c)

4

d)

7

4.

What is the mass number?

a)

the number of protons

b)

the number of protons and neutrons

c)

the number of neutrons

d)

the number of protons and electrons

5.

What is the atomic number of this atom?

a)

4

b)

5

c)

9

d)

none of the above

6.

What is the atomic number of this atom?

a)

9

b)

10

c)

19

d)

27

7.

What is the atomic number of this atom?

a)

2

b)

4

c)

6

d)

none of the above

8.

What is the atomic number of this atom?

a)

1

b)

2

c)

3

d)

4

9.

What is the atomic number of this atom?

a)

7

b)

14

c)

21

d)

none of the above

10.

What is the atomic number of this atom?

a)

8

b)

16

c)

24

d)

none of the above

11.

Which particle has a positive charge?

a)

electron

b)

orbital

c)

proton

d)

neutron

12.

Choose the particle that has no charge.

a)

nucleus

b)

neutron

c)

proton

d)

electron

13.

This particle determines what element you have - the elements identity.

a)

electron

b)

proton

c)

neutron

d)

valence shell

14.

An electron has relative charge of

a)

-2

b)

-1

c)

0

d)

+1

e)

+2

15.

Atoms are made up of what?

a)

molecules

b)

compounds

c)

elements

d)

subatomic particles

16.

Which of the following are subatomic particles? (Mark all that apply)

a)

protons

b)

neutrons

c)

megatrons

d)

electrons

e)

atoms

17.

The nucleus of an atom contains which subatomic particles?

a)

protons and electrons

b)

protons and neutrons

c)

electrons and neutrons

d)

protons, electrons, and neutrons

18.

Which subatomic particle does the RED(+) circle represent?

a)

proton

b)

neutron

c)

electron

d)

nucleus

19.

Which subatomic particle does the YELLOW(-) circle represent?

a)

proton

b)

neutron

c)

electron

d)

nucleus

20.

What is the mass number of this atom?

a)

2

b)

4

c)

6

d)

none of these

21.

Typically in an atom, which two subatomic particles are equal in number?

a)

protons and neutrons

b)

all subatomic particles are equal in number

c)

neutrons and electrons

d)

protons and electrons

22.

Which subatomic particles is counted to determine the type of element the atom represents?

a)

proton

b)

neutron

c)

electron

d)

boron

23.

How many protons are in Manganese (Mn) ?

a)

12

b)

25

c)

55

d)

30

24.

How many protons are in Bromine (Br) ?

a)

35

b)

80

c)

5

d)

11

25.

Which element has 11 protons?

a)

Magnesium

b)

Sodium

c)

Silicon

d)

Sulfur

26.

Which element has 56 protons ?

a)

Barium

b)

Boron

c)

Beryllium

d)

Bromine

27.

Which element has 3 more protons than Calcium (Ca) ?

a)

Fluorine

b)

Vanadium

c)

Tungstun

d)

Argon

28.

How many protons does a Copper atom have?

a)

63

b)

29

c)

92

d)

34

29.

A neutron has relative charge of

a)

-2

b)

-1

c)

0

d)

+1

e)

+2

30.

A proton has relative charge of

a)

-2

b)

-1

c)

0

d)

+1

e)

+2

31.

How many protons does iron, Fe have?

a)

26

b)

56

c)

30

d)

8

e)

4

32.

An electron has

a)

no mass at all.

b)

a very small mass.

c)

a mass similar to the proton.

d)

a mass larger than the atom.

33.

An electron has a relative mass of

a)

0 amu

b)

1 amu

c)

2 amu

d)

3 amu

e)

4 amu

34.

A proton has a relative mass of

a)

0 amu

b)

1 amu

c)

2 amu

d)

3 amu

e)

4 amu

35.

A neuton has a relative mass of

a)

0 amu

b)

1 amu

c)

2 amu

d)

3 amu

e)

4 amu

36.

What is the mass number?

a)

the number of protons

b)

the number of protons and neutrons

c)

the number of neutrons

d)

the number of protons and electrons

e)

the number of electrons and neutrons

37.

What is the mass number of this nucleus?

a)

1

b)

3

c)

4

d)

7

38.

How many protons does fluorine, F have?

a)

9

b)

19

c)

10

d)

17

e)

7

39.

How many protons does francium, Fr have?

a)

87

b)

7

c)

223

d)

136

e)

1

40.

What is the mass number of the isotope shown?

a)

63

b)

29

c)

92

d)

34

41.

What is the atomic number of the isotope shown?

a)

63

b)

29

c)

92

d)

34

42.

What is the mass number of this atom?

a)

8

b)

16

c)

24

d)

none of the above

43.

What is the mass number of this atom?

a)

1

b)

2

c)

3

d)

4

44.

What is the mass number of this atom?

a)

2

b)

4

c)

6

d)

none of these

45.

Which subatomic particle does the green circle represent?

a)

proton

b)

neutron

c)

electron

d)

nucleus

46.

What number does the red and green circles together represent?

a)

atomic number

b)

mass number

c)

oxidation number

d)

valence

47.

What number does just the red circles represent?

a)

atomic number

b)

mass number

c)

valence

d)

oxidation number

48.

What is the atomic number of this atom?

a)

2

b)

4

c)

6

d)

none of these

49.

What is the mass number of this atom?

a)

7

b)

14

c)

21

d)

none of the above

50.

What is the mass number of this atom?

a)

2

b)

4

c)

6

d)

none of the above

51.

What is the mass number of this atom?

a)

9

b)

10

c)

19

d)

27

52.

What is the mass number of this atom?

a)

4

b)

5

c)

9

d)

none of the above

53.

What is the atomic number of sodium, Na?

(a)

54.

What is the atomic number of magnesium, Mg?

(a)

55.

What is the atomic number of aluminum, Al?

(a)

56.

What is the atomic number of silicon, Si?

(a)

57.

What is the atomic number of phosphorus, P?

(a)

58.

What is the atomic number of sulfur, S?

(a)

59.

What is the atomic number of chlorine, Cl?

(a)

60.

What is the atomic number of argon, Ar?

(a)

61.

What is the mass number of

$oxygen-19$

(a)

62.

What is the mass number of

$oxygen-21$

(a)

63.

What is the mass number of

$oxygen-17$

(a)

64.

What is the atomic number of

$oxygen-19$

(a)

65.

What is the atomic number of

$oxygen-17$

(a)

66.

What is the atomic number of

$oxygen-21$

(a)

67.

What is the mass number of

$sulfur-36$

(a)

68.

What is the mass number of

$sulfur-33$

(a)

69.

What is the mass number of

$sulfur-31$

(a)

70.

What is the atomic number of

$sulfur-31$

(a)

71.

What is the atomic number of

$sulfur-33$

(a)

72.

What is the atomic number of

$sulfur-36$

(a)

73.

What is the mass number of

$fluorine-21$

(a)

74.

What is the mass number of

$fluorine-24$

(a)

75.

What is the mass number of

$fluorine-19$

(a)

76.

What is the mass number of

$fluorine-18$

(a)

77.

What is the atomic number of

$fluorine-18$

(a)

78.

What is the atomic number of

$fluorine-19$

(a)

79.

What is the atomic number of

$fluorine-22$

(a)

80.

What is the atomic number of

$_{16}^{34}S$

(a)

81.

What is the mass number of

$_{16}^{34}S$

(a)

82.

What is the mass number of

$_{19}^{42}K$

(a)

83.

What is the atomic number of

$_{19}^{42}K$

(a)

84.

What is the mass number of

$_{11}^{20}Na$

(a)

85.

What is the atomic number of

$_{11}^{20}Na$

(a)

86.

What is the atomic number of

$_{12}^{23}Mg$

(a)

87.

What is the mass number of

$_{12}^{23}Mg$

(a)

88.

What is the mass number of

$_{13}^{27}Al$

(a)

89.

What is the atomic number of

$_{13}^{27}Al$

(a)

90.

What is the atomic number of

$_{14}^{27}Si$

(a)

91.

What is the mass number of

$_{14}^{27}Si$

(a)

92.

What is the mass number of

$_{15}^{32}P$

(a)

93.

What is the atomic number of

$_{15}^{32}P$

(a)

94.

What nuclide has 12 protons and 14 neutrons?