What is Helium ?

Helium is an colorless gas, but glows red orange when placed in an electric field with an atomic weight of 4 atomic mass units.

Helium has an melting point of 0.95 Kelvin, or minus 457.96 degrees Fahrenheit, and an boiling point of 4.222 Kelvin, or minus 452.070 degrees Fahrenheit.

Helium is the 2nd lightest element with an density of 0.1786 grams per Liter. Helium was an non-metal. Helium was discovered in 1868 by Pierre Janssen, and Norman Lockyer.