Chemistry. A property of elements and compounds more or less equivalent to atomic weight and molecular weight. Now disused.
| 单词 | θ79792 |
| 释义 | the world > matter > physics > atomic nucleus > [noun] > number of chemical element (4) atomic number1821 Chemistry. A property of elements and compounds more or less equivalent to atomic weight and molecular weight. Now disused. Subcategories:— symbol of (1) — difference from effective charge (1) — separate element (1) |
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