References in periodicals archive ?
This choice of Avagadro's number keeps the numerical value of the mass of one atom in atomic mass units the same as the numerical value of one mol of atoms in gram molar mass units.
Your favorite snacks just wouldn't taste the same without this element, which has an atomic mass of nearly 23 atomic mass units (u).
Residual Gas Analyzer (RGA): A class of quadrupole mass spectrometers that typically cover mass ranges from 1 to 100 or 200 atomic mass units (amu).