valence

Unitarity of valence bond theory and crystal field theory

试论价键理论和晶体场理论的统一性

Photoreduction of Fe(ⅲ)-5-Nitro-1,10-Phenanthroline Complex and Its Application in Analysis of Iron Valence

Fe（Ⅲ）－5－硝基－1，10－菲啰啉配合物光还原的研究及其在铁价态分析中的应用

Valence Shell Orbital Hybridization Theory

试论价层轨道的杂化&兼论杂化轨道理论与价层电子对互斥理论的统一

Tungstate ions were reduced to oxide with intermediate valence.

电沉积过程中,钨酸根被还原成中间价态的氧化物.

The super iron compound, in which iron is 6 valence state, is capable to provide high cathode storage capacity due to its characteristic of three electron reduction.

超级铁化合物是铁的6价态的化合物，由于其3电子的还原特性，可以进行多电子还原，因此可提供较高的阴极容量。

The spatial configurations and bonding effects of Oxides of Nitrogen were explained by using the Valence-shell Electron Repulsion Theory, Hybrid-orbital Theory and Molecular orbital Theory.

用杂化轨道理论和分子轨道理论阐明了氮的氧化物成键类型，给出了分子空间构型及结构数据的解释。

Valence is a sleepy little town just south of Lyon.

瓦朗斯是里昂南面一座寂静的小镇。

Iron valence plays a key role in iron digestion for fish. In apparent digestibility Fe2+ is much more easily digested and absorbed than Fe3+ does. 3.

铁的价态是影响鱼体对铁消化吸收的一个因素，从表观消化率方面看，Fe2+比Fe3+更易于被消化吸收。

Valence shell orbital hybridization theory is exactly a synthetic theory that it has absorbed the advantages of these two theories.

价层轨道杂化理论正是在综合了这两种理论的优点之后得到的。

There are different colours with Anlu jade and the colour is controlled by its content, valence state and position of Fe in jade. Fe3+ shows a series of yellow, Fe2+ → Fe3+ electron transport shows blue.

安绿玉具多种颜色，它取决于铁的含量、价态和位置，含Fe~3+呈黄色系列，而Fe~（2+）→Fe~（3+）电荷转移吸收呈蓝色系列。

Mixed-valence Binuclear Complexes for Design of Molecular Wires and Switches

用于设计分子导线和分子开关的双核混价配合物

Elements 3 is a nonmetal with one valence electron.

元素3是带-1价的非金属元素.

The valence change of iron species in Fe-K-Cr/ C catalyst before and after deoxidation was studied by using in-situ Mossbauer spectrometer.

用原位穆斯堡尔谱研究了Fe-K-Cr/C体系催化剂在脱氧反应前后铁组分的价态变化。

Determination of the valence state of iron by phenanthroline-chloroform extraction and cerium(ⅳ) titration

邻菲啰啉氯仿萃取铈盐滴定法测定铁的价态

The outer ring contains the valence electrons.

排在外层的有价电子.

The valence atom of an alkali-metal atom has two states.

碱金属原子的价原子具有两种能态.

Carbon has a valence of four.

碳的化合价是四价.

When it is in this condition, the atom is said to be in a valence state.

当它处于这种状态时, 这个原子就可说是处于价态.

The main objection of crystal field theory is that it can not explain spectrochemical order because it ignores the valence shell electronic structural character of the coordination atoms.

晶体场理论的主要缺点是忽略了配位原子的价层电子结构特征，因而不能解释光谱化学序列。

Every element tends to satisfy both its primary and secondary valence.

每一元素倾向于既满足它的主价又要满足它的副价.

Halogen atoms contain seven electrons in their valence shell, and , consequently, are monovalent.

卤原子在它们的价电子层含有七个电子, 因此是一价的.

Halogen atoms contain seven electrons in their valence shell.

卤原子在它们的介电子层含有七个电子.

Theory of hybrid atomic orbital is part of modern valence bond theory and a difficult point in inorganic chemistry teaching.

杂化轨道理论是现代价键理论的一部分，也是大学无机化学教学的一个难点。本文从原子轨道为什么需要杂化；

Hydrogen is a one-valence element.

氢是一价的元素.

The secondary valence is directed toward fixed positions in space.

副介指向空间的确定位置.

Two shared valence electrons forming a bond between adjacent nuclei.

形成电子核子之间的键的两个共享原子价电子.

In the preceding section we discussed the valence bond ( VB ) or electron-pair theory of bonding.

在前面一节,我讨论了价键法——电子配对理论.

The Multiple Centre d-p π Bond and the Configuration of Molybdenum Cluster Compounds in Higher Oxidation States(ⅱ) The Rule of Cluster Valence Electron Number and Distortion of the Configuration

多中心d-pπ键与高氧化态钼簇合物的几何构型&（Ⅱ）簇价电子数规则与构型畸变

Based on Mossbauer spectra and some related data, the authors have analyzed valence of Fe ion in sapphire and studied coloration mechanism of sapphire from Shandong Province.

利用穆斯堡尔谱分析结果以及前人光谱分析等资料，从铁离子的价态入手，重新确立了山东蓝宝石的呈色机制，确定出致蓝因素与致黑因素。

In the valence bond treatment , explicit recourse is made to classical, localized bond structure.

价键法明显依赖经典的定域结构.