element n.[C] 1.要素,特色 2.【通常作单数】某事物的少量,某事物的启示或痕迹;自然的或合适的环境或栖息地 3.【化】元素 4.[the elements]自然力, 天气等(尤指坏天气) post adj. 後 Post it n. 报事贴(3M公司注册商标) post it n. 报事贴,便利贴,利贴,给人留言用的彩色粘纸片 heel(pos...
These polyatomic groups of the post-transition elements usually occur in bonding arrangements in which not only the bonding orbitals but also sufficient nonbonding orbitals are filled so that the clusters have a relatively low charge with a resulting average low oxidation stage. generally +-1. The...
aIn the 2002-2003 school year of significant achievements, as positive elements, such permit idiopathic form of encouragement. 在2002-2003学年重大成就,比如正元素,鼓励的这样许可证先天形式。[translate] a最近,国家出台了新的法规,将醉酒驾驶定为犯罪,判处1到6各月的拘役并处罚金。 Recently, the country ...
Compounds of Post-Transition Elements with the Ordered Perovskite Structure The brief history of oxide superconductors is presented and discussed in terms of structure, bonding and property interrelationships. The perovskite structure has been very prominent in the history of oxide superconductors, including...
Heteroatomic Polyanions of Post Transition Elements. Synthesis and Structure of a Salt Containing the Diarsenichexaselenate (2-) Anion, As2Se62-.arsenic, AsNo abstract is available for this article.doi:10.1002/chin.198236036Belin, Claude H. E....
Compounds of the elements in the three triads of post-transition metals, GaInTl, GeSnPb, and AsSbBi, form in their low-valence states a variety of stable c... H Schmidbaur,A Schier - 《Cheminform》 被引量: 163发表: 2008年 Ion chromatography of heavy and transition metals by on- and...
In theoretical terms, a three-step movement to grasp diversity in Central and Eastern Europe is proposed: (1) the acknowledgement of the plurality of modernizing agency and its creativity; (2) the acknowledgement of multi-interpretability and difference as primary elements of modernity; and (3) ...
This review focuses on compounds and methods that can be used for the extraction and separation from solution of two classes of elements that we define as heavy metals and precious metals. These elements are often targeted because they are toxic, costly, and their coordination chemistry has ...
The S-CI wavefunctions were used for the calculation of the most important electronic matrix elements for spin-orbit coupling. The photophysics of these ... I Baraldi,MC Brum,MP Costi,... - 《Photochemistry & Photobiology》 被引量: 28发表: 1990年 Study of ArO- and ArO via slow photoelec...
2) transition elements 过渡元素 1. The electron structure of transition elements is permanentlydiffcult point of teaching. 过渡元素原子电子层结构是长期困扰教学过程的难点。 2. At present there are the varied classifications for the transition elements in the domestic and overseas books,which are ...