Mobilities of Mercury Ions in Helium, Neon, and Argon

Abstract

The mobilities of mercury ions in helium, neon, and argon have been measured at 300\ifmmode^\circ\else\textdegree\fi{}K. The values obtained are ${\ensuremath{\mu}}_{0}=19.6(\mathrm{He}), 5.95 (\mathrm{Ne}), \mathrm{and} 1.84 (\mathrm{A})$ ${\mathrm{cm}}^{2}$/volt-sec. These values are in agreement with extrapolations of the mobility versus mass-number curves obtained for alkali ions in the noble gases by Tyndall and collaborators. The experimental values for ${\mathrm{Hg}}^{+}$ are compared with the Langevin theory in the polarization limit. Good agreement is obtained only for the case of argon.