Question

) The atomic mass and atomic number of an atom is given.

A 13

27

A = 27 Z = 13​

Answer 1

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