xenon

As nouns the difference between xenon and helium

is that xenon is a heavy, gaseous chemical element (symbol Xe) of the noble gases group with an atomic number of 54 while helium is a colorless and inert gas, and the second lightest chemical element (symbol He) with an atomic number of 2 and atomic weight of 4.002602.

As a noun xenon

is .

As an adjective nonxenon is

not of or pertaining to xenon.

As a noun xenon

is a heavy, gaseous chemical element (symbol Xe) of the noble gases group with an atomic number of 54.

As an adjective organoxenon is

describing any organic compound containing a carbon to xenon bond.