# which chemical element has the lowest boiling point? [closed]

which chemical element has the lowest boiling point?

Is it Helium(He) or is it Hydrogen(H)?

Hydrogen is lighter than Helium.

Helium has a stablest $1s$ orbital, which has somewhat lower energy. And, this makes it chemically inert towards other elements and to other Helium atoms, which is also the reason for its lowest boiling point.