Atomic mass unit

An atomic mass unit (abbreviation of "AMU") is a unit of mass. It is equal to 1/12 the mass of the most abundant isotope of carbon, carbon-12, which contains six protons, six neutrons, and six electrons.

• It can also be referred to as a "Dalton."

Widely used in physics and chemistry, in order to express the mass of atomic-scale objects, such as atoms, molecules, and elementary particles.

Fun Fact:

In 2374, Neelix attempted to beam 10,000 AMUs of protomatter from a class 1 nebula. However, the transporter beam ignited the protomatter.