Measurements of Six Light Masses

Abstract

The mass differences of 16 doublets involving the six atoms H, D, ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$, ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$, ${}_{}{}^{35}{}_{}{}^{}\mathrm{Cl}$, and ${}_{}{}^{37}{}_{}{}^{}\mathrm{Cl}$ have been measured with a new rf mass spectrometer with considerably greater precision than was attainable with the mass synchrometer. By least-squares adjustment, best values of the mass excesses of these six atoms have been determined for which the estimated errors are materially less than for previously published values.