The phrase "average atomic weight" is correct and usable in written English.
It is typically used in scientific contexts, particularly in chemistry, to refer to the weighted average of the atomic masses of an element's isotopes.
Example: "The average atomic weight of carbon is approximately 12.01 amu."
Alternatives: "mean atomic mass" or "weighted atomic mass".
This result indicates that the average atomic weight of the 3D islands is much greater than that of the NWs, while the average atomic weight of the NWs is slightly larger than that of the Si substrate.
Allègre et al. (1995) suggest that there are 7.35 wt% Si, 2.3 wt% S, and 4.1 wt% O in the core, which, normalized to an average atomic weight, is 23 g mol −1, close to the value prescribed by this hard sphere model variant.
In 1961, Birch published two papers on compressional wave velocities establishing a linear relation (now called Birch's law) of the compressional wave velocity Vp of rocks and minerals of a constant average atomic weight \bar{ M} with density \rho as: V_p = a (\bar{ M}) + b \rho.
The detection limit is situated at the concentrations of 0.1 1 % (for elements having average or light atomic weight with the exception of unfavorable superposition of characteristic peaks).
The standard atomic weight is the average mass of an element in atomic mass units.
A factor of 25 was used for converting phosphorus content to phospholipid based on an average molecular weight of phosphatidyl choline divided by atomic weight of phosphorus (Sigfusson and Hultin [2002]).
To calculate standard atomic weight for an element, scientists average the atomic weights of all its stable isotopes.
Today the atomic weight of an element is recognized as the weighted average of the masses of its isotopes.
The atomic weight of helium is 4.002602, the average that reflects the typical ratio of natural abundances of its isotopes.
Atomic weight, also called relative atomic mass, ratio of the average mass of a chemical element's atoms to some standard.
Döbereiner also observed that, when arranged by atomic weight, the second member of each triad was roughly the average of the first and the third; this became known as the Law of Triads.
