Qualities of Valency.

IN his article in Science of July 22 (see NATURE, September 15, p. 101), and in his address to Sections A and B of the British Association at Edinburgh, Dr. Irving Langmuir asks us to believe that the sodium and chlorine atoms in sodium chloride are never united by a chemical bond, i.e. that the salt is ionised in its synthesis and remains ionised under all… CONTINUE READING