The Brønsted-Lowry theory of acids and bases, which defines an acid as a proton donor and a base as a proton acceptor, was introduced independently by Johannes Brønsted and Thomas Lowry in 1923. This proton-based classification expanded on the earlier Arrhenius definition, allowing for a more generalized understanding of acid-base behavior beyond aqueous solutions.
On the description of the proton, the new classification of acid and base was given by?
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