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At some point, the electronegativity difference is so large that ions are simply formed. A molecular compound is formed by sharing of electrons. Depending on the electronegativity, molecular compounds are either polar or non-polar. These kinds of bonds are called covalent bonds.Due to the presence of an actual bond, bonds in a molecular compound are directional-towards the nuclei of the atoms.n a molecular compound, the atoms share electrons to form a compound. The atoms share electrons because they both want to achieve a full octet (8 electrons). In an ionic compound, the atoms transfer electrons to form a compound.
â¤ Ionic compounds are charged ions, whereas molecular compounds consist of molecules. â¤ An ionic compound is formed by the reaction of a metal with a non-metal, whereas a molecular compound is usually formed by the reaction of two or more non-metals.he chemical and physical properties of the compound that is eventually formed are different from those of the constituent elements. Most of the substances found in nature exist in the form of compounds, rather than as free elements.