Why do we need relative mass when we have actual atomic mass?

Asked by Mathumita | 22nd Nov, 2015, 06:52: PM

Expert Answer:

  • Atoms have such a small mass that it is more convenient to know their masses compared to each other. Carbon-12 is taken as the standard atom.
  • The atomic mass is defined as the mass of an atom. It can only be one isotope at a time and is not an abundance-weighted average.
  • The relative atomic mass is the average of all the atomic masses of all the element's isotopes as found in a particular environment, based on its isotopic abundance.

Answered by Prachi Sawant | 23rd Nov, 2015, 10:33: AM