What is AMU in Chemistry?
Answer – AMU, or atomic mass unit, is the unit of measurement used to express the mass of atoms, molecules, or subatomic particles. It is defined as 1/12th the mass of a 12C (carbon-12) atom.
Explanation:
AMU is approximately equal to 1.66 X 10-27 kilograms, or 1.66 x 10-24 grams. It is also known as the Dalton (Da) after chemist John Dalton. AMU is not exactly equal to the mass of the proton or neutron because an atom’s mass also includes the mass of the nucleus and the electrons.
