The atomic mass is the mass comparison indicates that the mass of elements, one heavy atoms are a few times the mass of elements, the first atomic
mass of the element 1 atomic mass is the actual atom that one atomic
mass of the element, the first atom is the mass. The element is used as a comparison. Which all atoms have equal value. So-called mass standard is equal to 1.66 x 10 -24 grams or 1 amu (atomic mass unit).
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