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Atomic mass
01
原子质量, 原子质量数
the weighted average mass of an atom of an element, taking into account the masses of all its naturally occurring isotopes
Example
The atomic mass of carbon is approximately 12.01 because it averages the masses of carbon-12 and carbon-13 isotopes.
碳的原子质量大约是12.01，因为它取了碳-12和碳-13同位素的质量的平均值。
Hydrogen has an atomic mass of about 1.01, reflecting the presence of both protium and deuterium isotopes.
氢的原子质量约为1.01，反映出质子和氘同位素的存在。
