The term “formula unit” is used for substances with ionic constituents because in ionic compounds, the smallest repeating unit is not a molecule but rather a formula unit consisting of ions in a fixed ratio.
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The term “formula unit” is used for substances with ionic constituents because in ionic compounds, the smallest repeating unit is not a molecule but rather a formula unit consisting of ions in a fixed ratio.
The term “formula unit” is used for substances with ionic constituents because they do not consist of discrete molecules like covalent compounds. Instead, they form repeating units of ions, represented by a formula reflecting the ratio of ions in the compound.