👉 The Lewis fluid, also known as the Lewis acid-base theory, is a model that describes chemical reactions involving Lewis acids and bases. Unlike traditional Brønsted-Lowry acid-base theory, which focuses on proton transfer, the Lewis theory defines acids as electron pair acceptors and bases as electron pair donors. In this framework, a Lewis acid is an electron-deficient species that can accept an electron pair from a Lewis base, which is an electron-rich species. This interaction leads to the formation of a coordinate covalent bond, where both electrons in the bond come from the same atom. The Lewis fluid concept is particularly useful for explaining reactions in organic and inorganic chemistry, where electron pair interactions play a crucial role. This theory expands the scope of acid-base chemistry beyond proton transfer, providing insights into a broader range of chemical phenomena.
