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Why are covalent bonds weaker than ionic bonds?

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Quartz and diamond are stronger substances because their molecules form network covalent structures. These structures form a lattice-like structure, much the same as ionic compounds. read more

Some ionic compounds have very strong bonds, while some covalent bonds are quite weak. Usually however, it is easier to break an ionic bond than a covalent one. What determines the actual strength of a bond is quite complex, but let me try to explain the basic principles. read more

Ionic bonds are almost always stronger than covalent bonds. The reasons for this are quite complex , but generally speaking ionic bonds have a stronger coulombic attraction and form lattice structures which are stronger than bonds formed by sharing electrons in electron shells ( covalent bonds). read more

If they form an ionic bond then that is because the ionic bond is stronger than the alternative covalent bond. This is either because the covalent bond is weak (poor orbital overlap / mismatched orbital energies) or the ionisation energies are relatively small compared to the lattice enthalpy. read more

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