Helium is considered a stale gas because there isn't a new source of it being added at any given time. An example of a non-stale gas would be oxygen, which is constantly renewed.
helium is a gas at room temperature.
Helium is a gas.
helium is a gas
Gas. Helium is a gas.
Yes. Helium is a gas
Helium is a colourless gas
Helium is pure as it is on the periodic table.
It is a nonmetal, noble gas.
No. Helium gas is just a gas. It is not flammable.
Helium is a noble gas
yes. helium is an odourless gas.
Litre or cubic meter for helium as a gas; litres for helium as a liquid.