ionicity

简明释义

英[ˌaɪəˈnɪsɪti]美[ˌaɪəˈnɪsəti]

n. 电离度；[物] 离子性

英英释义

单词用法

同义词

反义词

例句

1.These mechanisms are the internal displacement of the ionic charge, the internal displacement of the electronic charge and the charge in ionicity due to strain.

这些机制是离子电荷的内部位移、电子电荷的内部位移和由于应变引起的离子性的变化。

2.These mechanisms are the internal displacement of the ionic charge, the internal displacement of the electronic charge and the charge in ionicity due to strain.

这些机制是离子电荷的内部位移、电子电荷的内部位移和由于应变引起的离子性的变化。

3.The classical bond ionicity is corrected from the consideration of both the electronegativity difference and bond distance.

同时考虑电负性差和原子间距，对传统化学键离子性进行了修正。

4.The ionicity of sodium chloride is high, indicating strong ionic bonds between the sodium and chloride ions.

氯化钠的离子性很高，表明钠离子和氯离子之间有强烈的离子键。

5.Scientists often measure the ionicity of materials to predict their electrical conductivity.

科学家们经常测量材料的离子性以预测其电导率。

6.The ionicity of a compound can affect its melting and boiling points significantly.

一个化合物的离子性会显著影响其熔点和沸点。

7.In organic chemistry, compounds with low ionicity tend to be more soluble in nonpolar solvents.

在有机化学中，具有低离子性的化合物通常更易溶于非极性溶剂。

8.The degree of ionicity in a solution can influence the rate of chemical reactions.

溶液中的离子性程度可以影响化学反应的速率。

作文

Ionic compounds are fascinating substances that play a critical role in various chemical processes. One of the fundamental properties of these compounds is their ionicity, which refers to the degree of ionic character present in a chemical bond. Understanding ionicity is essential for predicting the behavior of substances in different environments, especially in solutions. When we talk about ionicity, we often refer to the separation of charges that occurs when atoms interact. In an ionic bond, one atom donates electrons to another, resulting in the formation of positively and negatively charged ions. The strength of this interaction can vary significantly, leading to different levels of ionicity. For instance, sodium chloride (NaCl) is a classic example of a compound with high ionicity, as the sodium ion and chloride ion are held together by strong electrostatic forces. This strong attraction gives rise to distinct physical properties such as high melting and boiling points.In contrast, covalent compounds, where electrons are shared rather than transferred, exhibit lower ionicity. For example, in a molecule like water (H2O), the bonds between hydrogen and oxygen are covalent, yet they have some degree of polarity due to differences in electronegativity. This polarity means that while water has some ionicity, it is much less than that of sodium chloride.The concept of ionicity also extends beyond simple ionic and covalent classifications. Many compounds exist on a spectrum of bonding types, where the ionicity can be quantified using various methods, such as measuring the lattice energy or assessing the physical properties of the substance. For example, compounds like magnesium oxide (MgO) have high ionicity because of the significant charge difference and size difference between the magnesium and oxide ions, leading to strong ionic interactions.Understanding ionicity helps chemists predict how substances will behave in different chemical reactions and environments. For instance, when an ionic compound dissolves in water, the high ionicity allows for the dissociation of ions, which is crucial for processes like electrical conductivity in solutions. This property is vital for applications ranging from biological systems, where ions play key roles in cellular functions, to industrial processes that rely on ionic reactions.Moreover, the study of ionicity has implications in material science, where the design of new materials often requires a careful balance of ionic and covalent characteristics. By manipulating the ionicity of a compound, scientists can create materials with desired properties such as improved strength, conductivity, or reactivity.In conclusion, ionicity is a key concept in chemistry that describes the nature of ionic bonds and their impact on the properties of substances. By understanding ionicity, we gain insight into the behavior of compounds in various contexts, enabling advancements in fields such as biochemistry, materials science, and environmental chemistry. As we continue to explore the complexities of chemical bonding, the significance of ionicity will undoubtedly remain at the forefront of scientific inquiry.

离子化合物是有趣的物质，在各种化学过程中发挥着关键作用。这些化合物的一个基本特性是它们的离子性，指的是化学键中存在的离子特征的程度。理解离子性对于预测物质在不同环境中的行为至关重要，尤其是在溶液中。当我们谈论离子性时，通常指的是原子相互作用时发生的电荷分离。在离子键中，一个原子向另一个原子捐赠电子，从而形成带正电和负电的离子。这种相互作用的强度可能会有显著差异，导致不同水平的离子性。例如，氯化钠（NaCl）是高离子性化合物的经典例子，因为钠离子和氯离子通过强电静力作用结合在一起。这种强吸引力产生了明显的物理特性，例如高熔点和沸点。相比之下，共价化合物，即电子共享而非转移的化合物，表现出较低的离子性。例如，在水（H2O）分子中，氢和氧之间的键是共价的，但由于电负性的差异，它们具有一定程度的极性。这种极性意味着水虽然有一些离子性，但远低于氯化钠。离子性的概念还超出了简单的离子和共价分类。许多化合物存在于不同类型的结合光谱上，其中离子性可以通过多种方法量化，如测量晶格能或评估物质的物理特性。例如，氧化镁（MgO）等化合物具有高离子性，因为镁离子和氧化物离子之间的显著电荷差异和大小差异导致强离子相互作用。理解离子性有助于化学家预测物质在不同化学反应和环境中的行为。例如，当离子化合物溶解在水中时，高离子性使离子能够解离，这对于电导率等过程至关重要。这一特性对从生物系统（离子在细胞功能中起关键作用）到依赖于离子反应的工业过程都有重要意义。此外，离子性的研究在材料科学中也具有重要意义，新材料的设计往往需要离子和共价特性之间的仔细平衡。通过操控离子性，科学家可以创造出具有所需特性的材料，例如提高强度、导电性或反应性。总之，离子性是化学中的一个关键概念，描述了离子键的性质及其对物质特性的影响。通过理解离子性，我们可以深入了解化合物在各种背景下的行为，从而推动生物化学、材料科学和环境化学等领域的进步。随着我们继续探索化学键的复杂性，离子性的重要性无疑将始终处于科学研究的前沿。