Species with data from:

Helm, H., The Mobilities and Equilibrium Reactions of Helium Ions in Helium at 77K, J. Phys. B, 1976, 9, 7, 1171, https://doi.org/10.1088/0022-3700/9/7/017 .

2 matching species were found.

For each matching species the following will be displayed:

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  1. helium (He)
  2. Helium cation (He+)