- Definition of He
He is the international symbol for Helium, a chemical element belonging to the main group 18, period 1 of the periodic table. The English name for Helium is “Helium”. The atomic mass of Helium is 4, and the atomic weight is 4.002602(2) u. A Helium molecule only contains one atom, which is He. Helium does not form ions under normal conditions due to its stable electron configuration. - Properties of He
2.1 Physical Properties of He
Helium in its gaseous state is colorless, odorless, tasteless, and non-toxic. The PH level does not apply to Helium as it is not a solution.
2.2 Chemical Properties of He
Helium is a very inert chemical element, it does not react with most other substances.
- Common Chemical Equations of He
Due to its very inert chemical properties, Helium does not react with metals, acids, non-metals, or salts. - Preparation of He
4.1 Preparation of He in Laboratory
Helium cannot be prepared in the laboratory because it does not react with other substances.
4.2 Industrial Preparation of He
Helium is industrially produced mainly from natural gas wells, where it is typically found in concentrations ranging from one thousandth to one percent.