Missing Chemical Symbols 51-103

Print the 'list of elements' to help answer this activity.

Type the missing chemical symbol in each box.
Select the 'check'  button to see if you answered correctly.

1
H
Hydrogen
1.0

  Atomic number
  Chemical symbol
  Chemical name
  Relative atomic mass

 

51

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Antimony
121.8

52

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Tellurium
127.6

53

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Iodine
126.9

54

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Xenon
131.3

55

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Caesium
132.9

56

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Barium
137.4

57

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Lanthanum
138.9

58

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Cerium
140.1

59

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Praseodymium
140.9

60

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Neodymium
144.2

61

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Promethium
147.0

62

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Samarium
150.4

63

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Europium
152.0

64

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Gadolinium
157.3

65

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Terbium
158.9

66

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Dysprosium
162.5

67

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Holmium
164.9

68

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Erbium
167.3

69

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Thulium
168.9

70

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Ytterbium
173.0

71

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Lutetium
175.0

72

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Hafnium
178.5

73

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Tantalum
181.0

74

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Tungsten
183.9

75

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Rhenium
186.2

76

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Osmium
190.2

77

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Iridium
192.2

78
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Platinum
195.1

79

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Gold
197.0

80

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Mercury
200.6

81

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Thallium
204.4

82

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Lead
207.2

83

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Bismuth
209.0

84

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Polonium
210.0

85

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Astatine
210.0

86

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Radon
222.0

87

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Francium
223.0

88

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Radium
226.0

89

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Actinium
227.0

90

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Thorium
232.0

91

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Protactinium
231.0

92

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Uranium
238.0

93

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Neptunium
237.0

94

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Plutonium
242.0

95

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Americium
243.0

96

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Curium
247.0

97

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Berkelium
247.0

98

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Californium
251.0

99

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Einsteinium
254.0

100

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Fermium
253.0

101

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Mendelevium
256.0

102

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Nobelium
254.0

103

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Lawrencium
257.0

       

Please make sure before you check answers, that spaces haven't been left before or after the symbols or it will mark them wrong.

 

Back | Elements 1-50

 

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