How to use the percent ionic character of a bond calculator
Estimate how ionic a chemical bond is from the electronegativity difference of its atoms (Pauling). Enter electronegativity of atom a, electronegativity of atom b in the fields above; the electronegativity difference, percent ionic character are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “ionic character of bond”, “electronegativity difference”, “percent ionic bond”, “calculate percent ionic character of a bond”, “find electronegativity difference”.
Formula
Variables
- xA — Electronegativity of atom A
- xB — Electronegativity of atom B
Worked example
With electronegativity of atom a = 3.98, electronegativity of atom b = 0.93, the calculator gives electronegativity difference ≈ 3.05; percent ionic character ≈ 90.22777 %.
Frequently asked questions
What is the percent ionic character of a bond calculator used for?
Estimate how ionic a chemical bond is from the electronegativity difference of its atoms (Pauling). It helps with questions such as “ionic character of bond”, “electronegativity difference”, “percent ionic bond”.
What is the formula for the percent ionic character of a bond calculation?
Electronegativity difference = abs(xA-xB). Percent ionic character (%) = 100 × (1-exp(-0.25 × [Electronegativity difference] × [Electronegativity difference])). Here xA is electronegativity of atom a, xB is electronegativity of atom b.
What inputs do I need for the percent ionic character of a bond calculator?
You need electronegativity of atom a, electronegativity of atom b. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the percent ionic character of a bond calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the percent ionic character of a bond result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.