Answer: The fraction of the bonding that is ionic is 0.08875.
Explanation:
Percentage ionic character is calculated using the formula:
% ionic character =[tex][16\times \Delta E_N + 3.5\times (\Delta E_N)^2][/tex]
Where, [tex]\Delta E_N[/tex] = electronegativity difference
Given : The electronegativities for Ga and P are 1.6 and 2.1 respectively.
Thus [tex]\Delta E_N[/tex] = electronegativity of phosphorous - electronegativity of galium = 2.1 -1.6 = 0.5
Therefore,
%ionic character = [tex][16\times 0.5 + 3.5\times (0.5)^2]=8.875[/tex]
Fraction of ionic bond =[tex]\frac{8.875}{100}= 0.08875[/tex]
The fraction of the bonding that is ionic is 0.08875.
