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Percent Ionic Character Calculator
Calculate bond ionic character from electronegativity difference
Formula (Hannay-Smith): % Ionic = 16(Δχ) + 3.5(Δχ)2
Where Δχ is the difference in electronegativity between the bonded atoms.
Where Δχ is the difference in electronegativity between the bonded atoms.
Bond Parameters
Calculation Results
⚠️ Percent ionic character formulas are empirical approximations based on dipole moments and electronegativity scales. Real bonds often possess varying degrees of covalent-ionic resonance.