How to separate substances by the type of chemical bond N2, Li2O, KCl, O2?

N2 is a covalent non-polar bond, because 2 identical non-metal atoms are connected. Li2O is an ionic bond, because atoms of metal and non-metal are connected. KCl – ionic bond, because atoms of metal and non-metal are connected. О2 is a covalent non-polar bond, because 2 identical non-metal atoms are connected.
It can be concluded that substances can be divided into 2 groups: with an ionic bond and a covalent non-polar one.



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