atom

atom怎么读

英式音标：[ˈætəm]

美式音标：[ˈætəm]

atom基本解释

n. 原子

atom的意思释义

n.

原子；原子能；微粒，微量；

变形

复数：atoms

双语释义

[C]原子 smallest part of an element that can exist chemically

[S]原子能 this as a source of energy

[C]微粒,微量 very small quantity or thing

英英释义

n.

(physics and chemistry) the smallest component of an element having the chemical properties of the element

(nontechnical usage) a tiny piece of anything

同义词：moleculeparticlecorpusclemotespeck

atom用法及例句

词汇搭配

用作名词 (n.)

动词+～

split the atom分裂原子

形容词+～

complex atom(s)复杂原子

simple atom(s)简单原子

splitting atom(s)裂变原子

介词+～

blow sth to atoms炸成碎片

break sth to atoms打得粉碎

smash sth to atoms打得粉碎

～+介词

an atom of一点点,丝毫(没有)

词组短语

hydrogen atom氢原子

atom bomb原子弹

bohr atom玻尔氏原子

neutral atom中性原子

同近义词辨析

这组词都有“粒，微粒”的意思，其区别是：

particle指任何物质的微粒，引申指任何小的部分。

atom指元素的较小粒子，其体积比molecule小。

grain通常指能为肉眼清楚看到的颗粒，比上述几个词所表“粒”的体积大。

speck一般指“微点”或“微粒”，可引申指“斑点、污点”。

molecule指物质中保持原物质的一切化学性质，能独立存在的较小微粒，即分子。

双语例句

用作名词(n.)

Scientists have unlocked the secret of the atom.

科学家已经揭开了原子的秘密。

A molecule of water consists of two atoms of hydrogen and one atom of oxygen.

水分子含有两个氢原子和一个氧原子。

The atom bomb is the offspring of the 20th century physics.

原子弹是20世纪物理学的产物。

That cannot get up an atom of sympathy for them.

那并不能激发起人们对他们的丝毫同情。

There isn\'t an atom of truth in the rumour.

谣言中没有丝毫的真实性。

例句参考

An all atom force field for simulations of proteins and nucleic acids.

All-atom empirical potential for molecular modeling and dynamics studies of proteins

MolProbity: all-atom structure validation for macromolecular crystallography

MolProbity: all-atom contacts and structure validation for proteins and nucleic acids

Embedded-atom method: Derivation and application to impurities, surfaces, and other defects in metals

Coherent X‐Ray Scattering for the Hydrogen Atom in the Hydrogen Molecule

Development and Testing of the OPLS All-Atom Force Field on Conformational Energetics and Properties of Organic Liquids

Controlled/“Living” Radical Polymerization. Atom Transfer Radical Polymerization of Acrylates at Ambient Temperature

Controlled/“Living” Radical Polymerization. Atom Transfer Radical Polymerization Catalyzed by Copper(I) and Picolylamine Complexes

atom词源

atom

atom: [16] Etymologically, atom means ‘not cut, indivisible’. Greek átomos ‘that which cannot be divided up any further’ was formed from the negative prefix a- ‘not’ and the base *tom- ‘cut’ (source also of English anatomy and tome), and was applied in the Middle Ages not just to the smallest imaginable particle of matter, but also to the smallest imaginable division of time; an hour contained 22,560 atoms.Its use by classical writers on physics and philosophy, such as Democritus and Epicurus, was sustained by medieval philosophers, and the word was ready and waiting for 19th-century chemists when they came to describe and name the smallest unit of an element, composed of a nucleus surrounded by electrons.=> anatomy, tome

atom (n.)

late 15c., as a hypothetical indivisible body, the building block of the universe, from Latin atomus (especially in Lucretius) \"indivisible particle,\" from Greek atomos \"uncut, unhewn; indivisible,\" from a- \"not\" + tomos \"a cutting,\" from temnein \"to cut\" (see tome). An ancient term of philosophical speculation (in Leucippus, Democritus), revived 1805 by British chemist John Dalton. In late classical and medieval use also a unit of time, 22,560 to the hour. Atom bomb is from 1945 as both a noun and a verb; compare atomic.

atom相关例句

1.monovalent atom

一价原子

2.atom-atom collision

原子－原子碰撞

3.metastable atom

亚稳原子

5.electropositive atom

阳电性原子

6.tetrahedronal atom

四面体的原子

7.struck atom

被击原子

9.daughter atom

继承元素的原子