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atomic weight

/əˈtɒmɪk weɪt/

翻译: 原子的平均质量,按元素在自然界中各同位素的相对丰度加权计算,通常以原子质量单位表示。也常指元素的相对原子质量。

1 个条目

phrase

/əˈtɒmɪk weɪt/C1formalscientific
  • zh原子的平均质量,按元素在自然界中各同位素的相对丰度加权计算,通常以原子质量单位表示。也常指元素的相对原子质量。

The average mass of atoms of an element, calculated using the relative abundance of isotopes in a naturally occurring sample, typically expressed in atomic mass units.

  1. Relative atomic massC1formal

    The average mass of atoms of an element, measured in atomic mass units (amu), relative to the mass of a carbon-12 atom.

    zh相对原子质量

    • The atomic weight of carbon is approximately 12.01 amu.
    • Scientists use atomic weight to calculate the mass of molecules.
    • The periodic table lists the atomic weight of each element.