Question:

atomic mass unit is____.

Updated On: May 13, 2024
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Solution and Explanation

1 atomic mass unit (amu), or simply 1 unified atomic mass unit (u), is defined as one twelfth (112\frac{1}{12}) of the mass of an atom of carbon-12.
The value, in terms of kilograms, is approximately:
 1 amu (or u)1.660539040(20)×1027 kg1 \text{ amu (or u)} \approx 1.660539040(20) \times 10^{-27} \text{ kg}  
This unit is used to express the weights of atoms and molecules.
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