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词汇 dianion
分类 英语词汇 英语翻译词典
释义

dianion /dai'ænaiən/

英汉-汉英词典
n. 二价阴离子
词组 | 习惯用语
您要查找的是不是：
  • Dionysian adj. 酒神
  • Indianian 印第安纳州的人
  • Ionian adj. 爱奥尼亚的；爱奥尼亚式的；爱奥尼亚人的 n. 爱奥尼亚人；爱奥尼亚
  • dining n. 吃饭，进餐 v. 吃饭（dine的现在分词）
dianion n. 二阶阴离子

网络短语:
Tetraiodoterephthalate dianion 四碘代对苯二甲酸
corresponding dianion 应的两位负离子
cyclooctatetraenyl dianion 环辛四烯二负离子
英语例句库
  1. Reaction of Dianion 8 with 4 To Form 7 and Enol 10.
    反应形成酸根84710和烯醇.

声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。

原声例句
SciShow - Chemistry

Researchers are still looking for practical uses for ortho-diethynylbenzene dianion.

研究人员仍在寻找邻二乙炔基苯双阴离子的实际用途。

SciShow - Chemistry

Whereas the record-breaking ortho-diethynylbenzene dianion has a proton affinity of 440 kilocalories per mole.

而破纪录的邻二乙炔基苯双阴离子的质子亲和力为每摩尔 440 大卡。

SciShow - Chemistry

And just last year, researchers in Australia managed to create the strongest superbase ever discovered — a compound called ortho-diethynylbenzene dianion.

就在去年，澳大利亚的研究人员设法创造了迄今为止发现的最强超级碱——一种称为邻二乙炔基苯双阴离子的化合物。

中文百科

离子 Ion

（重定向自Dianion）
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Dianion）
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 (/ˈaɪən, -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.
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