Question

dafination of atomic mass?
​

Answer 1

Answer:

The atomic mass is the mass of an atom. Although the SI unit of mass is the kilogram, atomic mass is often expressed in the non-SI unit atomic mass unit or unified mass or dalton, where 1 amu or 1 u or 1 Da is defined as 1⁄12 of the mass of a single carbon-12 atom, at rest.

Answer 2

Answer:

atomic mass number is 2

Explanation:

mark me as brainliest