Calculate the difference (subtract) in electronegativities for each set of elements below. Use the difference to determine the type of bond that will form (Use the chart above).



Column A

3.
Calcium (Ca) and Chlorine (Cl). in CaCl2

Column B
c.The electronegativity difference is 1. The bond will be nonpolar covalent.
d.The electronegativity difference is 2.0. The bond will be ionic.
e.The electronegativity difference is 0. The bond will be ionic.
f.The electronegativity difference is 2.0. The bond will be polar covalent.

The difference in electronegativities between Calcium (Ca) and Chlorine (Cl) is 3.0 - 3.2 = 1.7.

Since the electronegativity difference is 1.7, the bond is considered to be polar covalent.