Early versions of the periodic table had gaps, missing elements.

早期的元素周期表有空缺，缺少一些元素。

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In fact, subsequent work has shown that in a periodic table, elements should not be ordered strictly by atomic mass.

事实上，后来的研究已经证明，在元素周期表中，元素不应该严格按照原子质量来排序。

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The structure of the periodic table appeared to limit the number of possible elements.

元素周期表的结构似乎限制了潜在元素的数量。

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People who remember the periodic table of the elements from chemistry class might recognize them.

VOA: special.2010.10.08

You are allowed to use on the test the official version of the Periodic Table of the Elements which most of you should have by now.

在测试中你们可以使用,化学元素周期表的官方版本,你们应该大部分都有了吧。

麻省理工公开课 - 固态化学导论课程节选

And there's a lot we can explain by talking about what we see in the periodic table in terms of what different trends are in grouping different elements in different spots within the periodic table.

我们可以解释很多,通过讨论元素,周期表中的内容,按照各种不同的规律,将周期表中不同位置的元素分组归类。

麻省理工公开课 - 化学原理课程节选

Elements 110, 111, and 112 on the Periodic Table of Elements were discovered some time ago, but their names in the Periodic Table of Elements have been the difficult to pronounce names Ununnilium, Unununium, and Ununbium.

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Touch Press's app The Elements set the template by bringing the periodic table of elements to life.

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Prime names for really ugly babies -- or, equivalently, new elements on the periodic table.

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