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The only result that popped up pertained to chemistry: specifically, to the periodic table and the atomic numbers of the alkaline earth metals.

A silvery, alkaline earth metal called strontium comes in different versions, or isotopes, each with a different atomic mass.

Liu, Y., Merinov, B. V. & Goddard, W. A. Origin of low sodium capacity in graphite and generally weak substrate binding of Na and Mg among alkali and alkaline earth metals.

It is difficult to see what the chemical similarity between helium and alkaline earth metals is, however.

Optical lattice clocks with alkaline earth atoms provide one of the most stable time-keeping systems.