Establish how to find the electronegative difference and determine which among the compounds is most ionic
Recall that dipole moment refers to the electronegativity difference in a bond/molecule. This means the molecule with the largest dipole moment has the largest electronegativity difference.
Recall that bonds can be classified acc. to their EN difference as:
(ΔEN) Bond Classification
Zero (0.0) Pure Covalent
Small (0.1 – 0.4) Nonpolar Covalent
Intermediate (0.4 – 1.7) Polar Covalent
Large (Greater than 1.7) Ionic
By calculating the electronegative difference, we can determine which bond/compound has the most ionic. The higher the EN difference, the more ionic it is
Based on electronegativities, which of the following would you expect to be most ionic?
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