Question

definition of atomic mass unit​

Answer 1

Answer:

An atomic mass unit (symbolized AMU or amu) is defined as precisely 1/12 the mass ofan atom of carbon-12. The carbon-12 (C-12)atom has six protons and six neutrons in its nucleus. In imprecise terms, one AMU is the average of the proton rest mass and the neutron rest mass.

Answer 2

a unit of mass used to express atomic and molecular weight ,equal to one twelfth of the mass of an atom of carbon-12