2 in notes

solnavni lujvo

x₁ is a quantity of/contains/is made of helium (He).

See also solri, navni

• lensisku

In notes:

ejliio

x₁ is a quantity/is made of helium [He].

navni

x₁ is a quantity of/contains/is made of noble gas of type x₂ [helium/neon/argon/krypton/xenon/radon].