Free Printable Practice: Isotope Calculations #2

1.

What is the Isotopic Symbol (Hyphen form) for 24Na?

a)

Sodium-24

b)

Sodium-23

c)

Neon-24

d)

Magnesium-24

2.

What is the Atomic # for 24Na (Sodium-24)?

a)

11

b)

12

c)

23

d)

24

3.

What is the Mass # for 24Na (Sodium-24)?

a)

24

b)

22

c)

23

d)

25

4.

What is the # of Protons for 24Na (Sodium-24)?

a)

11

b)

12

c)

24

d)

10

5.

What is the # of Neutrons for 24Na (Sodium-24)?

a)

13

b)

11

c)

12

d)

14

6.

What is the # of Electrons for 24Na (Sodium-24)?

a)

11

b)

12

c)

10

d)

24

7.

What is the Isotopic Symbol (Hyphen form) for 32S?

a)

Sulfur-32

b)

Sulfur-34

c)

Sulfur-30

d)

Sulfur-36

8.

What is the Atomic # for 32S (Sulfur-32)?

a)

16

b)

12

c)

18

d)

20

9.

What is the Mass # for 32S (Sulfur-32)?

a)

32

b)

16

c)

34

d)

30

10.

What is the # of Protons for 32S (Sulfur-32)?

a)

16

b)

14

c)

18

d)

20

11.

What is the # of Neutrons for 32S (Sulfur-32)?

a)

16

b)

14

c)

18

d)

20

12.

What is the # of Electrons for 32S (Sulfur-32)?

a)

16

b)

18

c)

32

d)

8

13.

What is the Isotopic Symbol (Hyphen form) for 44Ca?

a)

Calcium-44

b)

Calcium-40

c)

Calcium-42

d)

Calcium-46

14.

What is the Atomic # for 44Ca (Calcium-44)?

a)

20

b)

22

c)

18

d)

24

15.

What is the Mass # for 44Ca (Calcium-44)?

a)

44

b)

40

c)

42

d)

48

16.

What is the # of Protons for 44Ca (Calcium-44)?

a)

20

b)

22

c)

18

d)

44

17.

What is the # of Neutrons for 44Ca (Calcium-44)?

a)

24

b)

20

c)

22

d)

18

18.

What is the # of Electrons for 44Ca (Calcium-44)?

a)

20

b)

22

c)

18

d)

44

19.

What is the Isotopic Symbol (Hyphen form) for 24Mg?

a)

Magnesium-24

b)

Magnesium-25

c)

Magnesium-23

d)

Magnesium-26

20.

What is the Atomic # for 24Mg (Magnesium-24)?

a)

12

b)

24

c)

8

d)

16

21.

What is the Mass # for 24Mg (Magnesium-24)?

a)

24

b)

12

c)

26

d)

23

22.

What is the # of Protons for 24Mg (Magnesium-24)?

a)

12

b)

24

c)

8

d)

16

23.

What is the # of Neutrons for 24Mg (Magnesium-24)?

a)

12

b)

10

c)

14

d)

8

24.

What is the # of Electrons for 24Mg (Magnesium-24)?

a)

12

b)

10

c)

24

d)

14

25.

What is the Isotopic Symbol (Hyphen form) for 64Zn?

a)

Zinc-64

b)

Zinc-65

c)

Zinc-63

d)

Zinc-66

26.

What is the Atomic # for 64Zn (Zinc-64)?

a)

30

b)

28

c)

32

d)

26

27.

What is the Mass # for 64Zn (Zinc-64)?

a)

64

b)

62

c)

66

d)

68

28.

What is the # of Protons for 64Zn (Zinc-64)?

a)

30

b)

32

c)

28

d)

34

29.

What is the # of Neutrons for 64Zn (Zinc-64)?

a)

34

b)

30

c)

36

d)

40

30.

What is the # of Electrons for 64Zn (Zinc-64)?

a)

30

b)

32

c)

28

d)

34

31.

What is the Isotopic Symbol (Hyphen form) for 207Pb?

a)

Lead-207

b)

Lead-208

c)

Lead-206

d)

Lead-204

32.

What is the Atomic # for 207Pb (Lead-207)?

a)

82

b)

79

c)

92

d)

74

33.

What is the Mass # for 207Pb (Lead-207)?

a)

207

b)

204

c)

210

d)

200

34.

What is the # of Protons for 207Pb (Lead-207)?

a)

82

b)

79

c)

92

d)

74

35.

What is the # of Neutrons for 207Pb (Lead-207)?

a)

125

b)

120

c)

130

d)

140

36.

What is the # of Electrons for 207Pb (Lead-207)?

a)

82

b)

126

c)

207

d)

86

37.

What is the Isotopic Symbol (Hyphen form) for 127I?

a)

Iodine-127

b)

Iodine-126

c)

Iodine-129

d)

Iodine-131

38.

What is the Atomic # for 127I (Iodine-127)?

a)

53

b)

63

c)

47

d)

35

39.

What is the Mass # for 127I (Iodine-127)?

a)

127

b)

126

c)

129

d)

131

40.

What is the # of Protons for 127I (Iodine-127)?

a)

53

b)

54

c)

127

d)

74

41.

What is the # of Neutrons for 127I (Iodine-127)?

a)

74

b)

72

c)

76

d)

80

42.

What is the # of Electrons for 127I (Iodine-127)?

a)

53

b)

54

c)

127

d)

74

43.

What is the Isotopic Symbol (Hyphen form) for 238U?

a)

Uranium-238

b)

Uranium-235

c)

Uranium-234

d)

Uranium-239

44.

What is the Atomic # for 238U (Uranium-238)?

a)

92

b)

90

c)

94

d)

88

45.

What is the Mass # for 238U (Uranium-238)?

a)

238

b)

235

c)

240

d)

222

46.

What is the # of Protons for 238U (Uranium-238)?

a)

92

b)

94

c)

90

d)

86

47.

What is the # of Neutrons for 238U (Uranium-238)?

a)

146

b)

142

c)

150

d)

144

48.

What is the # of Electrons for 238U (Uranium-238)?

a)

92

b)

146

c)

238

d)

118

49.

What is the Isotopic Symbol (Hyphen form) for 129Te?

a)

Tellurium-129

b)

Tellurium-128

c)

Tellurium-130

d)

Tellurium-127

50.

What is the Atomic # for 129Te (Tellurium-129)?

a)

52

b)

53

c)

54

d)

50

51.

What is the Mass # for 129Te (Tellurium-129)?

a)

129

b)

128

c)

130

d)

131

52.

What is the # of Protons for 129Te (Tellurium-129)?

a)

52

b)

54

c)

48

d)

50

53.

What is the # of Neutrons for 129Te (Tellurium-129)?

a)

77

b)

65

c)

82

d)

70

54.

What is the # of Electrons for 129Te (Tellurium-129)?

a)

52

b)

54

c)

50

d)

48

55.

What is the Isotopic Symbol (Hyphen form) for 19F?

a)

Fluorine-19

b)

Fluorine-18

c)

Fluorine-20

d)

Fluorine-17

56.

What is the Atomic # for 19F (Fluorine-19)?

a)

9

b)

17

c)

12

d)

6

57.

What is the Mass # for 19F (Fluorine-19)?

a)

19

b)

9

c)

20

d)

18

58.

What is the # of Protons for 19F (Fluorine-19)?

a)

9

b)

17

c)

12

d)

6

59.

What is the # of Neutrons for 19F (Fluorine-19)?

a)

10

b)

9

c)

11

d)

8

60.

What is the # of Electrons for 19F (Fluorine-19)?

a)

9

b)

10

c)

19

d)

18

61.

The difference between mass number and average atomic mass is:

a)

Mass number is the total number of protons and neutrons, while average atomic mass is the weighted average of all isotopes.

b)

Mass number is the weighted average of isotopes, while average atomic mass is the total number of protons and neutrons.

c)

Mass number is always a decimal, while average atomic mass is always a whole number.

d)

Mass number and average atomic mass are always the same for any element.

62.

The most common version of an element is indicated by its:

a)

isotope

b)

atomic number

c)

mass number

d)

valence electrons

Practice: Isotope Calculations #2

Total questions: 62

Worksheet time: 31mins

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