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
- He patented the idea that the atom could be split
他获得了“原子可以再分”这一概念的专利权。 - So, which atom is in need of those lone pair electrons?
那么，哪个原子需要这对孤对电子呢？ - 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。 - There isn't atom of sense in what you say.
你所说的话没有道理。 - Ion: Atom or group of atoms with one or more positive or negative electric charges.
离子：带有一个或多个正电荷（阳离子）或负电荷（阴离子）的原子或原子团。 - The compact core of the atom begins to appear.
紧凑的原子内核现身了。 - 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 anion OH having one oxygen and one hydrogen atom.
含一个氧原子和一个氢原子的OH负离子。 - An atom itself is a complete whole, with its electrons, protons and neutrons and other elements
一个原子本身就是一个完整的整体，包括电子、质子、中子及其他元素。 - 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。