1HHydrogen

2.20

3

LiLithium

0.98

4

BeBeryllium

1.57

11

NaSodium

0.93

12

MgMagnesium

1.31

19

KPotassium

0.82

20

CaCalcium

1.00

21

ScScandium

1.36

22

TiTitanium

1.54

23

VVanadium

1.63

24

CrChromium

1.66

25

MnManganese

1.55

26

FeIron1.83

27

CoCobalt1.88

28

NiNickel1.91

29

CuCopper1.90

30

ZnZinc1.65

31

GaGallium

1.81

13

AlAluminum

1.61

5

BBoron2.04

32

GeGermanium

2.01

14

SiSilicon1.90

6

CCarbon2.55

33

AsArsenic2.18

15

PPhosphorus

2.19

7

NNitrogen

3.04

34

SeSelenium

2.55

16

SSulfur2.58

8

OOxygen3.44

35

BrBromine

2.96

17

ClChlorine

3.16

9

FFluorine

3.98

36

KrKrypton

3.00

18

ArArgon

no data

10

NeNeon

no data

2

HeHeliumno data

37

RbRubidium

0.82

38

SrStrontium

0.95

39

YYttrium1.22

40

ZrZirconium

1.33

41

NbNiobium

1.6

42

MoMolybdenum

2.16

43

TcTechnetium

1.9

44

RuRuthenium

2.2

45

RhRhodium

2.28

46

PdPalladium

2.20

47

AgSilver1.93

48

CdCadmium

1.69

49

InIndium1.78

50

SnTin

1.96

51

SbAntimony

2.05

52

TeTellurium

2.1

53

IIodine2.66

54

XeXenon

2.6

55

CsCesium

0.79

56

BaBarium0.89

57-71 72

HfHafnium

1.3

73

TaTantalum

1.5

74

WTungsten

2.36

75

ReRhenium

1.9

76

OsOsmium

2.2

77

IrIridium

2.2

78

PtPlatinum

2.28

79

AuGold2.54

80

HgMercury

2.00

81

TlThallium

1.62

82

PbLead2.33

83

BiBismuth

2.02

84

PoPolonium

2.0

85

AtAstatine

2.2

86

RnRadon

no data

87

FrFrancium

0.7

88

RaRadium

0.89

89-103

57

LaLanthanum

1.10

58

CeCerium1.12

59

PrPraseodymium

1.13

60

NdNeodymium

1.14

61

PmPromethium

1.13

62

SmSamarium

1.17

63

EuEuropium

1.2

64

GdGadolinium

1.2

65

TbTerbium

1.22

66

DyDysprosium

1.23

67

HoHolmium

1.24

68

ErErbium1.24

69

TmThulium

1.25

70

YbYtterbium

1.1

71

LuLutetium

1.2789

AcActinium

1.1

90

ThThorium

1.3

91

PaProtactinium

1.5

92

UUranium

1.38

93

NpNeptunium

1.36

94

PuPlutonium

1.28

95

AmAmericium

1.3

96

CmCurium

1.3

97

BkBerkelium

1.3

98

CfCalifornium

1.3

99

EsEinsteinium

1.3

100

FmFermium

1.3

101

MdMendelevium

1.3

102

NoNobelium

1.3

103

LrLawrencium

no data

104

RfRutherfordium

no data

105

DbDubniumno data

106

SgSeaborgium

no data

107

BhBohriumno data

108

HsHassiumno data

109

MtMeitnerium

no data

110

DsDarmstadtium

no data

111

RgRoentgenium

no data

112

CnCopernicium

no data

113

UutUnuntriumno data

114

FlFleroviumno data

115

UupUnunpentium

no data

116

LvLivermorium

no data

117

UusUnunseptium

no data

118

UuoUnunoctium

no data

LanthanideSeries

ActinideSeries

1.0 1.3 1.6 1.9 2.2 2.5 2.8 3.1

Number

SymbolName

Electronegativity

Periodic Table of the Elements

2014 Todd Helmenstinesciencenotes.org

Electronegativity