atomic mass unit (amu) یکای ِ جرم ِ اتمی yekâ-ye jerm-e atomi (#)
Fr.: unité de masse atomique A unit of mass used for atoms and molecules, equal to 1/12 of the mass
of an atom of carbon-12 (including orbital electrons).
It is equal to 1.660 33 × 10-24 g. → atomic; → mass; → unit. |