A chemist lectures about the following definition for acids and bases.The acid-base behavior is analyzed in terms of how electrons are transferred between compounds rather than in terms of how hydrogen ions are transferred.What is the chemist defining?

The Lewis concept describes acids and bases in terms of electron pairs: a Lewis acid accepts an electron pair, and a Lewis base donates one. This approach does not require the transfer of hydrogen ions, unlike the Brønsted-Lowry concept. Therefore, the chemist is defining the Lewis concept of acids and bases.

AI-written and checked against the verified answer.