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Problem: Based on electronegativities, which of the following would you expect to be most ionic?A. CF4B. CaF2C. CH4D. N2E. CO2

FREE Expert Solution

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:


Electronegativity Difference        

              (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

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Problem Details

Based on electronegativities, which of the following would you expect to be most ionic?

A. CF4

B. CaF2

C. CH4

D. N2

E. CO2

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