Covalent Bonds

The covalency in bonds is dependant on the diffence in negativity values in the present elements. For example:

With the given values and find the differnce between each molecule that is bonded together with another. In H2SO4 the H is bonded to the O. By subracting the values of these two elements, the covalency of the bond is revealed.

Oxygen also bonds with Sulfur in H2SO4, and the covalency of this bond is also able to be obtained.