Jun 24, 2020 | Helium (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...
Mar 28, 2020 | Element gases, Helium (He), Industrial Gases, Noble Gases
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...
