Question

what is atomic mass​

Answer 1

Explanation:

Atomic mass is a characteristic of an atom that is a measure of its size. It is plays a major role in the chemical properties of elements.

Answer 2

Answer:

The dalton or unified atomic mass unit (symbols: Da or u) is a unit of mass widely used in physics and chemistry. It is defined as 1/12 of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest.[1][2] The atomic mass constant, denoted mu, is defined identically, giving mu = m(12C)/12 = 1 Da.[3]