Chemistry

Lewis theory


US chemist Gilbert Newton Lewis developed an acid-base theory related to the electron pair.

Lewis acid - is the chemical species that receives the electron pair in a chemical reaction.
Lewis base - is the chemical species that donates the electron pair in a chemical reaction.

Example:

Summary table of acid-base theories

THEORY

ACID

BASE

Arrhenius

Release H + in aqueous solution

Releases OH- in aqueous solution

Bronsted-lowry

Donate 1 proton

Receive 1 proton

Lewis

Get the electron pair

Donate the electron pair