CBSE Class 9 Answered
<div>what is atom mass</div>
Asked by anshuldabral78 | 12 Sep, 2016, 09:41: PM
Expert Answer
The mass of an atom of a chemical element is expressed in atomic mass units. An atomic mass unit (symbolized AMU or amu) is defined as precisely 1/12 the mass of an atom of carbon-12.
Answered by Hanisha Vyas | 14 Sep, 2016, 02:38: PM
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