Helium gas (He)

Helium gas (He)

Helium, inert gas of Group 18 of the periodic table the second lightest element (only hydrogen is lighter), helium is a colorless, odorless, and tasteless gas that becomes liquid at −268.9 °C (−452 °F). The boiling and freezing points of...
Helium

Helium

Properties Gaseous chemical element, symbol: He, atomic number: 2 and atomic weight 4,0026 g/mol. Helium is one of the noble gases of group O in the periodic table. It’s the second lightest element. The main helium source in the world is a series of fields of natural...