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Percent Ionic Character Calculator

Chemistry
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Calculates the percent ionic character of a chemical bond based on the electronegativity difference between two atoms.

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How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Electronegativity of Atom A and Electronegativity of Atom B in the units shown.

Step 2

Read Electronegativity Difference and Percent Ionic Character in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Sodium Chloride (NaCl)

Electronegativity of Atom A: 3; Electronegativity of Atom B: 0.9

Electronegativity Difference: 2.1; Percent Ionic Character: 66.8 %

Hydrogen Fluoride (HF)

Electronegativity of Atom A: 3.98; Electronegativity of Atom B: 2.2

Electronegativity Difference: 1.78; Percent Ionic Character: 54.71 %

Lithium Iodide (LiI)

Electronegativity of Atom A: 2.5; Electronegativity of Atom B: 1

Electronegativity Difference: 1.5; Percent Ionic Character: 43.02 %

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