chemical element

化学元素

同：	[n.] element

The term element refers to a pure substance with atoms all of a single kind. At present 107 chemical elements are known.
元素这一术语是指由单一种类的原子所组成的纯物质。现在已经知道有107种元素。收藏
Oxide: Compound produced when an element has chemical action with oxygen.
氧化物:元素与氧作用而产生的化合物。收藏
Native element： Any of the 19 chemical elements that occur as minerals and are found in nature uncombined with other elements.
自然元素:以自然状态存在于矿物中，不与其它元素结合的十九种化学元素。收藏
Oxide： Any of a large and important class of chemical compounds in which oxygen is combined with another element.
氧化物:氧与其它元素化合而形成的一大类重要化合物的统称。收藏
Transuranium element Any of the chemical elements after uranium in the periodic table (with atomic numbers greater than 92).
超铀元素:周期表中铀以后的任何化学元素(原子序数大于92)。收藏

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any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
[同] element, chemical element

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