CBSE Class 9 Answered
Why do we need relative mass when we have actual atomic mass?
Asked by Mathumita | 22 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 | 23 Nov, 2015, 10:33: AM
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