网站首页  英汉词典

请输入您要查询的英文单词:

 

单词 Negative ion
释义

Negative ion

英语例句库

It has been proved that it is economical and feasible to eliminate educt alkali from coarse sodium tungstate with electrodialysis method of negative ion (1) selective membrane.

一价阴离子选择膜电渗析法从粗钨酸钠溶液中脱除游离碱是经济可行的。

原声例句
经济学人(汇总)

Among its popular products were " negative- ion" sanitary pads that claimed to prevent menstrual cramping and cervical cancer.

该公司最受欢迎的产品之一是“负离子”卫生巾,声称可以预防经痛和宫颈癌。

Scishow 精选系列

They're compounds made up of positive and negative ions, usually formed when an acid reacts with a base.

它们是由正离子和负离子组成的化合物,通常在酸与碱反应时形成。

Crash Course 综合篇

These elements gain electrons to form those negative ions ending with " ide" .

这些元素获得电子形成那些以“ide” 结尾的负离子。

学生科学报

Positive ions move to one electrode and negative ions onto the other.

正离子移动到一个电极, 负离子移动到另一个电极。

Veritasium真理元素

Here's a video I originally titled, " Are Negative Ions Good For You? " Which is a question nobody asked ever.

这是我最初命名为“负离子对你有好处吗? ” 的视频,这是一个从未有人问过的问题。

The Early Sessions

The negative ions are of help, but you could not produce such conditions. But the attempt to produce advantageous conditions is in itself of help in any case.

负离子是有帮助,但你们产生不了这样的条件。但试图产生有利条件本身,在任何情况下都是有帮助的。

Osmosis-内分泌

Individuals will also have a high anion gap, which reflects a large difference in the unmeasured negative and positive ions in the serum, largely due to this build up of ketoacids.

患者也会有阴离子间隙偏高,指的是血浆中未测定的阴阳离子浓度差值高,主要原因是酮酸的积累。

中文百科

离子 Ion

(重定向自Negative ion)
离子也是构成化学结构的基本粒子
伽凡尼电池

离子是指原子由于自身或外界的作用而失去或得到一个或几个电子使其达到最外层电子数为8个(如第一层是最外层,则为7个,若是氢离子,则没有外层电子)的稳定结构。这一过程称为电离。电离过程所需或放出的能量称为电离能

在化学反应中,金属元素原子失去最外层电子,非金属原子得到电子,从而使参加反应的原子或原子团带上电荷。带电荷的原子叫做离子,带正电荷的原子叫做阳离子,带负电荷的原子叫做阴离子。阴、阳离子由于静电作用而形成不带电性的化合物。

与分子、原子一样,离子也是构成物质的基本粒子。如氯化钠就是由氯离子和钠离子构成的。

英语百科

Ion 离子

(重定向自Negative ion)
Hydrogen atom (center) contains a single proton and a single electron.  Removal of the electron gives a cation (left), whereas addition of an electron gives an anion (right).  The hydrogen anion, with its loosely held two-electron cloud, has a larger radius than the neutral atom, which in turn is much larger than the bare proton of the cation. Hydrogen forms the only cation that has no electrons, but even cations that (unlike hydrogen) still retain one or more electrons are still smaller than the neutral atoms or molecules from which they are derived.
Schematic of an ion chamber, showing drift of ions. Electrons drift faster than positive ions due to their much smaller mass.[2]
Avalanche effect between two electrodes. The original ionisation event liberates one electron, and each subsequent collision liberates a further electron, so two electrons emerge from each collision: the ionising electron and the liberated electron.
Mixed Roman numerals and charge notations for the uranyl ion. The oxidation state of the metal is shown as superscripted Roman numerals, whereas the charge of the entire complex is shown by the angle symbol together with the magnitude and sign of the net charge.

An ion (/ˈən, -ɒn/) is an atom or a molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge. Ions can be created, by either chemical or physical means, via ionization.

随便看

 

英汉网英语在线翻译词典收录了3779314条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2024 encnc.com All Rights Reserved
更新时间:2025/6/21 13:18:13