Explain percent ionic character of a bond. explain percent ionic character of a bond. percent ionic character is defined as the ratio of a bond's actual dipole moment to the dipole moment it would have if the electron were completely shared between two atoms, multiplied by 100. percent ionic character is defined as the ratio of a bond's actual dipole moment to the dipole moment it would have if the electron were completely transferred from one atom to the other, multiplied by 1000. percent ionic character is defined as the ratio of a bond's actual dipole moment to the dipole moment it would have if the electron were completely transferred from one atom to the other, divided by 100. percent ionic character is defined as the ratio of a bond's actual dipole moment to the dipole moment it would have if the electron were completely transferred from one atom to the other, multiplied by 100.