The lightest gas in the universe is probably hydrogen having Atomic Mass 1 u.(approx).
helium is the lightest air
Hydrogen is the lightest gas.
Hydrogen gas is the lightest. With a formula of H2, it has an atomic mass of only half that of helium. It is highly reactive and there isn't much of it just floating around by itself. Plus, because it is so light, it just floats right up out of our atmosphere and into space.
Helium
helium
Hydrogen is the lightest gas found in air.
helium is the lightest air
Hydrogen was, and is, the lightest gas
Hydrogen is the lightest gas.
Yes it is, and it's also the lightest gas in the universe.
Hydrogen gas is the lightest. With a formula of H2, it has an atomic mass of only half that of helium. It is highly reactive and there isn't much of it just floating around by itself. Plus, because it is so light, it just floats right up out of our atmosphere and into space.
gas is the lightest in weight
generally, you can look at the Periodic Table of Elements. hydrogen is the lightest of both
Hydrogen gas has the lightest density of any liquid.
the lightest gas is hydrogen
hydrogen
Helium