Theoretically, other true compounds may be possible, such as helium fluorohydride (HHeF) which would be analogous to HArF, discovered in 2000.
Teoretic mai pot exista si alti compusi ai heliului, cum ar fi fluorhidrura de heliu (HHeF) ce reprezinta analogul fluorhidrurii de argon (HArF), descoperita in 2000.