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Element

Oxidation State

Orbital or Hybrid

Mulliken-Jaffe Electronegativity

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Aluminum

3

hybridsp2

1.83

hybridsp3

1.71

1

orbitalp

0.91

Antimony

hybridsp3

2.22

hybrid20% s

2.12

orbitalp

1.67

Argon

hybridsp3

3.49

hybrid12.5% s

3.19

orbitalp

2.86

Arsenic

3

hybridsp3

2.38

hybrid20% s

2.26

orbitalp

1.78

Astatine

hybrid14.3% s

2.85

orbitalp

2.55

Barium

hybridsp

0.88

Beryllium

hybridsp

1.54

Bismuth

hybrid20% s

2.15

Boron

hybridsp2

2.04

hybridsp3

1.90

Bromine

hybrid14.3% s

2.95

orbitalp

2.60

Cadmium

2

hybridsp

1.53

Calcium

hybridsp

1.08

Carbon

hybridsp

2.99

hybridsp2

2.66

hybridsp3

2.48

Cesium

orbitals

0.62

Chlorine

hybrid14.3% s

3.10

orbitalp

2.76

Copper

1

orbitals

1.49

Fluorine

hybridsp3

4.30

hybrid14.3% s

3.91

orbitalp

3.35

Francium

orbitals

0.68

Gallium

3

hybridsp2

2.01

1

orbitalp

0.87

Germanium

4

hybridsp3

2.33

2

orbitalp

1.30

Gold

orbitals

1.87

Helium

orbitals

3.49

Hydrogen

orbitals

2.25

Indium

3

hybridsp2

1.76

1

orbitalp

0.82

Iodine

hybridsp3

2.95

hybrid14.3% s

2.74

orbitalp

2.45

Krypton

hybridsp3

3.31

hybrid12.5% s

3.00

orbitalp

2.66

Lead

4

hybridsp3

2.41

2

orbitalp

1.16

Lithium

orbitals

0.97

Magnesium

hybridsp

1.37

Mercury

hybridsp

1.81

Neon

hybridsp3

4.49

hybrid12.5% s

3.98

orbitalp

3.41

Nitrogen

hybridsp

3.68

hybridsp2

3.26

hybridsp3

3.04

hybrid20% s

2.90

orbitalp

2.28

Oxygen

hybridsp2

3.94

hybridsp3

3.68

hybrid16.7% s

3.41

orbitalp

2.82

Phosphorus

hybridsp3

2.41

hybrid20% s

2.30

orbitalp

1.84

Polonium

hybrid16.7% s

2.48

Potassium

orbitals

0.73

Radium

hybridsp

0.92

Radon

orbitalp

2.12

Rubidium

orbitals

0.69

Selenium

hybridsp3

2.79

hybrid16.7% s

2.60

orbitalp

2.20

Silicon

hybridsp3

2.28

Silver

1

orbitals

1.47

Sodium

orbitals

0.91

Strontium

hybridsp

1.00

Sulfur

hybridsp3

2.86

hybrid16.7% s

2.69

orbitalp

2.31

Tellurium

hybridsp3

2.57

hybrid16.7% s

2.41

orbitalp

2.06

Thallium

3

hybridsp2

1.96

1

orbitalp

0.76

Tin

4

hybridsp3

2.21

2

hybrid30% s

1.85

Xenon

hybridsp3

3.01

hybrid12.5% s

2.73

orbitalp

2.44

Zinc

hybridsp

1.65

References    (Click the button next to a value above to see complete citation information for that entry)

Allen, Leland C., and James E. Huheey. "The Definition of Electronegativity and the Chemistry of the Noble Gases." Journal of Inorganic and Nuclear Chemistry, volume 42, number 10, 1980, pp. 1523–1524. doi:10.1016/0022-1902(80)80132-1

Bratsch, Steven G. "Revised Mulliken Electronegativities: I. Calculation and Conversion to Pauling Units." Journal of Chemical Education, volume 65, number 1, 1988, pp. 34–41. doi:10.1021/ed065p34

Huheey, James E., Ellen A. Keiter, and Richard L Keiter. Inorganic Chemistry: Principles of Structure and Reactivity, 4th edition. New York: HarperCollins College Publishers, 1993.