Question

is atomic mass unit a particle unit​

Answer 1

Atomic mass unit. The atomic mass unit is a unit of mass, often abbreviated as amu, which is approximately the mass of one nucleon (either a proton or neutron).

Answer 2

The atomic mass unit is a unit of mass, often abbreviated as amu, which is approximately the mass of one nucleon (either a proton or neutron). This mass is also called the atomic mass constant and denoted by mu