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
- 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。 - The chief differences between chlorophyll and heme are the presence of a magnesium atom in the center of the porphyrin ring.
叶绿素和血红素之间的主要的差别为在卟啉环中心存在一个镁原子。 - This simple molecule consists of one oxygen atom and two hydrogen atoms.
这个简单的水分子由一个氧原子和两个氢原子构成。 - Each of the four valency electrons of the carbon atom is shared with one of a hydrogen atom.
碳原子的四个价电子都各与氢原子的一个价电子共用。 - 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。 - So there's one electron in each hydrogen atom.
所以每个氢原子中有两个电子。 - This is a one electron atom.
这里有一个单电子原子。 - We will consider this Zeeman effect for the hydrogen atom.
我们将对氢原子考虑此塞曼效应。 - Water is spoken of as containing two atoms of hydrogen and one atom of oxygen.
人们说水含有两个氢原子和一个氧原子。 - There isn't atom of sense in what you say.
你所说的话没有道理。