| 单词 | atomic number |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔isobar〕Any of two or more kinds of atoms having the same atomic mass but different atomic numbers.同量异位素：两种或各多种有相同原子质量但却有不同的原子序数的原子中的任一种美国传统〔isotope〕One of two or more atoms having the same atomic number but different mass numbers.同位素：两个或更多具有相同原子序数却具有不同的质量数的原子中的一个美国传统〔periodic law〕The principle that the properties of the elements recur periodically as their atomic numbers increase.周期律：元素属性根据原子数的增长周期性出现的规律美国传统〔periodic table〕A tabular arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column.周期表：元素根据原子数安排的表，使有相似特性的元素在同一行中美国传统〔period〕Chemistry A sequence of elements arranged in order of increasing atomic number and forming one of the horizontal rows in the periodic table.【化学】 元素周期：一系列元素按原子序数升序排列形成的周期表中的一个横排美国传统 |
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