Question

define the atomic mass unit.​

Answer 1

Answer:

an atomic mass unit is a mass unit which is equal to the atomic mass of carbon 12

Answer 2

Answer:

a unit of mass widely used in physics and chemistry. It is defined precisely as 1/12 of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest. A mass of 1 Da is also referred to as the atomic mass constant and denoted by mᵤ.