Question

What is meant by Unified Atomic Mass?

Answer 1

1. During earlier times, one way to determine an atom's mass directly was to evaluate its relative mass. However, relative mass is no longer recognized after creating a unified mass.
2. Unified atomic mass is the unit of atomic mass called Dalton.
3. Its symbol is ‘u’. 1u = 1.66053904 x 10^-27 kg.