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atomic mass constant comparison table
Subject has unit has uncertainty has definition has equation has value has symbol is a kind of has approval date is an instance of
massmass unit The measure of the inertia of an object, determined by observing the acceleration when a known force is applied. The gravitational force acting on an object is found to be proportional to its mass, as is the gravitational force that it exerts on other objects.   quantity  
physico chemical constant    changes in value are due solely to an increase in measurement accuracy or convention fundamental physical constant  
atomic mass constantkg0.00000013 × 10-27 kgOne-twelfth the mean mass of an atom of carbon 12 (including the orbital electrons).1.66053873 × 10-27 kgmu 1961mass

Next massChandrasekhar limit    Upmass, physico chemical constant    Previous massPlanck mass