Positronium facts for kids
Positronium is a type of exotic atom that is made of one positron and one electron. They both stay in the same orbital. Less than one second after it is created the Positronium is destroyed and it forms two gamma rays.
Images for kids
The Positronium Beam at University College London, a lab used to study the properties of positronium
Positronium Facts for Kids. Kiddle Encyclopedia.