Helium is the second lightest element. It is a colorless, odorless, tasteless inert gas at room teHelium is the second lightest element. It is a colorless, odorless, tasteless inert gas at room temperature and atmospheric pressure. Helium is present in dry air at a concentration of 0.0005%. Its' principal source is natural gas wells where the helium is extracted from the crude natural gas stream and purified. Helium can be stored and shipped either as a gas or a cryogenic liquid. Also, its low specific gravity and non-flammability allow it to be used in lighter-than-air applications such as the filling of balloons and blimps. There is something incredibly neat about helium balloons! If you buy one at the circus or fair, you can hold its string and it will ride along above you. If you let go of the string, it will fly away until you can't see it anymore. mperature and atmospheric pressure. Helium is present in dry air at a concentration of 0.0005%. Its' principal source is natural gas wells where the helium is extracted from the crude natural gas stream and purified. Helium can be stored and shipped either as a gas or a cryogenic liquid. Also, its low specific gravity and non-flammability allow it to be used in lighter-than-air applications such as the filling of balloons and blimps. There is something incredibly neat about helium balloons! If you buy one at the circus or fair, you can hold its string and it will ride along above you. If you let go of the string, it will fly away until you can't see it anymore.
