您要查找的是不是:
- Elements 3 is a nonmetal with one valence electron. 元素3是带-1价的非金属元素。
- The outer ring contains the valence electrons. 排在外层的有价电子。
- Hole - Similar to a positive charge, this is caused by the absence of a valence electron. 空穴-和正电荷类似,是由缺少价电子引起的。
- In this paper, the topological index mG of average attracting energy of valence electron was proposed. 构建了价电子平均吸引能拓扑指数mG。
- The doublet nature of this and other lines in the Na spectrum indicates a doubling of the expected number of states available to the valence electron. 钠光谱中的这条线以及其它线的双重性指出预期价电子可用的状态数是双重的。
- The magnetic fields of the valence electrons do not cancel. 价电子的磁性没有抵消。
- Blocks: four areas of the periodic table, each having similar valence electron configurations. 如果元素所在的周期号和族号为已知;你应该能够迅速写出原子的价电子组态.
- A set of eight valence electrons in an atom or ion, forming a stable configuration. 八重态在一个原子或离子中,形成稳定组态的一组八个化合价电子
- On the basis of the principle, the OET (orbital-energy topological index) was proposed by revising the valence electron distance matrix with the orbital energy. 根据该原理,利用价电子轨道能量对价电子距离矩阵进行修正。
- 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。
- Through analysis on the structure of valence electron shell, the atom radius, the bonding orbital and other important parameters, this paper discusses the irregularity in the second circle of nonmetal elements and the irregular courses. 摘要本文通过对第二周期元素价电子层结构、原子半径、成键轨道及其重要参数的分析,讨论了第二周期非金属元素的不规则现象,并且分析了产生这些不规则性的原因。
- The valence electron structures of austenite of steels 38CrSi,gCrSi,12CrNi_3A dnd 18Cr_2Ni_4WA are developed by means of the empirical electron theory of solids and molecules by Yu Ruihuang. 本文利用余瑞璜的固体与分子经验电子理论计算了3gCrSi、9Crsi、12CrNi3、18Cr_2Ni_4W钢奥氏体的价电子结构。 从扩散与偏聚两方面讨论了原子状态-原子键力、结构、形态与性能之间的关系。
- It is helpful to imagine a metal crystal composed of positive ion cores, atoms without their valence electron, about which the negative electrons circulate. 这有助于(我们)这样想象:一种金属晶体由一些正离子核(失去价电子的原子)和在这些正离子核附近流动的负电子组成。
- Transition element Any chemical element with valence electrons in two shells instead of only one. 过渡元素及其化合物:价电子处在两个壳层而不是一个壳层里的任何化学元素。
- It was generally believed that in a metal the valence electrons are easily detached from the individual atoms. 一般认为,在金属中价电子容易脱离个别原子。
- Mercury has two valence electrons,and its spectral series has monolayer structures and three-layer structures. 汞具有两个价电子,其光谱系有单层结构和三层结构,不同结构塞曼效应中分裂的情况不同。
- One way to simplify the problem is to divide the electrons into two groups: the 36 core electrons, and the two 4s valence electrons. 简化此问题的一个方法是把电子分成两组:36个原子实电子和2个4s价电子。
- The silicon atom occupies the space opening(interstice)between the oxygen atoms and shares four valence electrons with the four oxygen atoms. 硅原子占据了氧原子之间的空隙并且和四个氧原子共用化合价。
- The methyl group carbon atom has 6 valence electrons from its bonds to the hydrogen atoms because carbon is more electronegative than hydrogen. 由于碳电负性高于氢,因此甲基中的碳原子具有6个价电子。
- The charge, orbital, or spin ordering of valence electrons in advanced materials can be incommensurate with the periodic structure of lattice. 摘要在前瞻性材料中,价电子的分布可呈现与原子结构不一致的周期性,形成电荷、轨域或自旋有序排列。