atom
英 [ˈætəm]
美 [ˈætəm]
n. 原子
复数：atoms
Oxford 3000 / Collins.2 / BNC.4241 / COCA.5184
牛津词典
noun
- 原子
the smallest part of a chemical element that can take part in a chemical reaction- the splitting of the atom
原子的分裂 - Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.
两个氢原子和一个氧原子结合组成一个水分子。
- the splitting of the atom
柯林斯词典
- N-COUNT 原子
Anatomis the smallest amount of a substance that can take part in a chemical reaction.- A methane molecule is composed of one carbon atom attached to four hydrogens.
甲烷分子由1个碳原子与4个氢原子构成。
- A methane molecule is composed of one carbon atom attached to four hydrogens.
英英释义
noun
- (nontechnical usage) a tiny piece of anything
- (physics and chemistry) the smallest component of an element having the chemical properties of the element
双语例句
- We utilize the atoms interact resonantly with a single-mode cavity, and introduce an auxiliary atom.
提出了一个利用单模腔场和原子的共振相互作用制备团簇态的方案，并引入了辅助原子。 - There isn't atom of sense in what you say.
你所说的话没有道理。 - A molecule of ammonia is made up of one atom of nitrogen and three atoms of hydrogen.
氨分子包含一个氮原子和三个氢原子。 - The power of the atom can be used to produce electricity.
原子能可以用来发电。 - So there's one electron in each hydrogen atom.
所以每个氢原子中有两个电子。 - The atom of lithium is made up of three electrons, three protons and four neutrons.
锂原子是由三个电子、三个质子和四个中子组成的。 - The compact core of the atom begins to appear.
紧凑的原子内核现身了。 - In this model the arrangement of bonds around the central atom is considered to depend upon how many valence-shell electron pairs.
在这个模型中，认为围绕中心原子的化学键的排列取决于价层中电子对的数量。 - And ion, which is an atom or group of atoms with an electrical charge.
和离子，它是一个原子或原子的电荷组。 - A negative ion is an atom which has gained one or more extra electrons.
获得一个或多个额外电子的原子称为负离子。