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Last updated date: 03rd Dec 2023
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Write the formula for calculation of percentage ionic character.

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Hint : For the calculation of percentage of ionic character, first we need to calculate the dipole moment of the molecule. Dipole moment is the measure of polarity of two atoms in a molecule. Higher the electronegativity difference between the atoms, more will be the ionic character and vice versa.

For calculating the percentage of ionic character, we need to start off by calculating the dipole moment of the molecule using the formula:
$\mu = q \times r$
Where, $\mu =$ dipole moment,
$q =$ Charge of electron
$r =$ Distance between them.
After calculating the dipole moment, we need to convert the $cm$ into standard unit of dipole moment $(D)$ i.e. Debye. $1D = 3.335 \times {10^{ - 30}}cm$ .
As we are done converting $cm$ into standard units, we can now use the formula of percentage ionic character to find out the percentage ionic character.
We know, the formula of percentage ionic character is:
$\dfrac{{experimental\;value}}{{theoretical\;value}} \times 100$
After substituting the experimental value and theoretical value, we will get a percentage ionic character.
Therefore, the formula of percentage ionic character is:
$\dfrac{{experimental\;value}}{{theoretical\;value}} \times 100$

Note :
For calculating the percentage of ionic character, we need to remember the standard unit of dipole moment or $1D$ i.e. $3.335 \times {10^{ - 30}}$ . And for dipole moment, we need to remember the charge of an electron i.e. $1.6 \times {10^{ - 19}}$ . We can also find out percentage ionic character by using the formula $\dfrac{q}{e} \times 100$ ,
Where $q$ is the charge of the given electron and $e$ is the charge of one electron.