For example, tellurium comes before iodine in the periodic table, even though its atomic mass is slightly greater.

例如在元素周期表中，碲排在碘之前，尽管它的原子质量略大一些。

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Just five years later an element with the proper atomic mass was isolated and named gallium by its discoverer.

仅仅5年后，一种具有适当原子质量的元素被分离出来，并被发现者命名为镓。

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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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It is a double column, You can see, it starts with hydrogen and goes to mercury in ascending order of atomic mass.

双纵栏，你们看到，从氢开始,然后到水银，按原子质量的升序排列。

麻省理工公开课 - 固态化学导论课程节选

Mendeleev is the one who taught us that the properties of the elements are a function of the atomic mass.

门捷列夫教授我们元素特性,是元素质量所起的功能。

麻省理工公开课 - 固态化学导论课程节选

That is why this says atomic number, but for most intents and purposes we can say this could be atomic mass.

那就是为什么这里说原子序数，但如果没有意图和目的,我们就说是原子质量。

麻省理工公开课 - 固态化学导论课程节选

Prof Peter Higgs developed a theory of how other sub-atomic particles came to have substance, or mass, and published his work in 1964.

BBC: Science correspondent, BBC News

Hans Blix, the chief of the UN inspectors, and Mohamed ElBaradei, who heads the International Atomic Energy Agency, expect their teams to start searching for any evidence of weapons of mass destruction on November 27th.

ECONOMIST: The war of words begins | The