Question

helium is the second most abundant element in the universe however , there are no known compounds of helium why​

Answer 1

Helium is the second most abundant element in the universe .but there are no known compounds of helium because IT IS A NOBLE GAS. noble gases have stable 8 electronic configuration in its valence shell and it is stable electronic configuration.

Answer 2

Because helium is an inert(noble) gas, it doesn't react or forms bond with any element, so there are no existent compounds of helium