1. Education
You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum

Atomic Mass Unit Definition (amu)

Chemistry Glossary Definition of Atomic Mass Unit (amu)

By

An amu is relative to the mass of carbon-12.

An amu is relative to the mass of carbon-12.

undefined
Atomic Mass Unit or AMU Definition: an atomic mass unit or amu is one twelfth of the mass of an unbound atom of carbon-12. It is a unit of mass used to express atomic masses and molecular masses.

Also Known As: unified atomic mass unit (u), Dalton (Da) or universal mass unit

Return to the Chemistry Glossary Index

Related Video
Physical and Chemical Properties of Matter
Introduction to Amino Acids

©2014 About.com. All rights reserved.