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元素的周期分类
The periodic table arranges atoms based on increasing atomic number so that elements with the same chemical properties recur periodically. When their…
原子半径和有效核电荷
The elements in groups of the periodic table exhibit similar chemical behavior. This similarity occurs because the members of a group have the same…
离子半径
Ionic radius is the measure used to describe the size of an ion. A cation always has fewer electrons and the same number of protons as the parent…
电离能
The amount of energy required to remove the most loosely bound electron from a gaseous atom in its ground state is called its first ionization energy…
电子亲和能
The electron affinity (EA) is the energy change for adding an electron to a gaseous atom to form an anion (negative ion). This process can be…
碱金属
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of…
卤素
Group 17 elements, known as halogens, are nonmetals. At room temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine a solid.…
稀有气体
The elements in group 18 are noble gases (helium, neon, argon, krypton, xenon, and radon). They earned the name “noble” because they…
金属浸出在固定金属亲和力色谱中的定量
Contamination of enzymes with metals leached from immobilized metal affinity chromatography (IMAC) columns poses a major concern for enzymologists,…
从分子到材料: 通过卤素键合工程新的离子液体晶体
Herein, we demonstrate that a bottom-up approach, based on halogen bonding (XB), can be successfully applied for the design of a new type of ionic…
由 F<sup>−</sup> 310 Nm 支队所示的阴离子光电子成像
Anion photoelectron imaging is a very efficient method for the study of energy states of bound negative ions, neutral species and interactions of…

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