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Which element tend to form a covalent bond? If the electronegativity difference between two atoms is less than 1.7, then they form covalent bond. Generally when non metal reacts with another non metal, then a covalent â¦bond is formed between these two atoms. 2 people found this useful.
Covalent bonds can create polar or non-polar molecules. Although most beginner courses focus on ionic and covalent bonds, it is also important to understand hydrogen and metallic bonds. Hydrogen bonds occur when the partial charges that occur during covalent bonds attract one another and bond through a common hydrogen atom.