There are two reasons through which we can say that Helium does not form any real chemical compound.
If we look at the chemical configuration of He, it contains 2 electron in the outermost s orbital i.e He =
As we know, to form any kind of bond these electrons have to excite other orbitals but in Helium there is no suitable orbital present for excitation. Hence , Helium forms no real chemical compound.
Another reason is ionization energy. The ionization energy of Helium is 2372 Kg/mole which is very high. If the ionization energy is greater than the bond energy then the bond will not form. In the case of Helium, ionization energy is quite high to form any bond.
Final answer :
From the above reasons we can say that Helium forms no real chemical compound.