Encyclopedia > Helium-3

  Article Content

Helium-3

Helium-3 is a non -radioactive and light isotope of helium. It has two protons but only one neutron in contrast to two neutrons in ordinary helium. Helium-3 is rare on Earth and sought-after for use in fusion. More abundant helium-3 is thought to exist on the Moon (embedded in the upper layer of regiolith from solar wind over billions of years) and the gas giants (left over from the original solar nebula) in our solar system.

Helium-3 is used in cryogenics to achieve temperatures as low as a few thousandths of a kelvin.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Royalist

... shades of meaning. At its simplest, it refers to an adherent of a monarch or royal family. Of the more specific uses of the term, the most common include: 1. A ...

 
 
 
This page was created in 31.1 ms