Abstract
The structure of such radicals as (NO3) on the one hand, (ClO3) on the other, is discussed on the basis of their being partly valence compounds, the oxygen being in the form of O1 with one valence bond. The directional properties of the valence lead to a coplanar structure for the first type of radical, a pyramidal one for the second, as is observed. The energy relations are discussed, it is shown that the valence model will be bound in a stable structure, and that it is stabler and hence nearer the real model than the purely ionic structure.