The average mass of an atom of an element, expressed by comparison to a standard atom (formerly one of hydrogen or oxygen, now one of the isotope…
| 单词 | θ79346 |
| 释义 | the world > matter > physics > atomic physics > [noun] > atomic mass (9) atomic mass1884 The average mass of an atom of an element, expressed by comparison to a standard atom (formerly one of hydrogen or oxygen, now one of the isotope… Subcategories:— unit of (2) — effect arising from (1) — in proportion to weight (1) — concentrated mass (2) — space containing (1) — absence of (1) |
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