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Helium

What the name means: Helium was named after Helios, the ancient Greek god of the Sun.

Helium

Helium atom

Helium atom

 

 

 

Who identified helium?: Two scientists, a Frenchman named Pierre Janssen and an Englishman named Joseph Lockyer, discovered helium in 1869 after their studies of special photographs (called spectrographs) of the Sun.

 

Properties

Helium

STP = standard temperature and pressure.
Usually considered as room temperature and pressure.

 

About helium: Helium is the second most common element in the universe. There is a very small quantity of helium atoms in the Earth's atmosphere. Helium is one of a group of elements called the noble gases. An atom of helium is stable and so it does not need chemically bond to other atoms.

 

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