ARRHENIUS, SVANTE (AUGUST)

born Feb. 19, 1859, Vik, Swed. died Oct. 2, 1927, Stockholm Svante Arrhenius, 1918. Swedish physical chemist best known for his theory that electrolytes, certain substances that dissolve in water to yield a solution that conducts electricity, are separated, or dissociated, into electrically charged particles, or ions, even when there is no current flowing through the solution. In 1903 he was awarded the Nobel Prize for Chemistry.