ionic valency

简明释义

离子价

英英释义

例句

1.Calcium has an ionic valency of +2, allowing it to form stable bonds with oxygen.

钙的离子价为+2，使其能够与氧形成稳定的键。

2.The ionic valency of sodium is +1, which means it can donate one electron.

钠的离子价为+1，这意味着它可以捐赠一个电子。

3.The ionic valency of chloride is -1, making it a strong electron acceptor.

氯的离子价为-1，使其成为一个强电子受体。

4.When calculating the formula of a salt, consider the ionic valency of each ion.

在计算盐的化学式时，要考虑每个离子的离子价。

5.In compounds, the ionic valency determines how ions combine with each other.

在化合物中，离子价决定了离子之间如何结合。

作文

Understanding the concept of ionic valency is essential for anyone studying chemistry, particularly in the context of ionic compounds. ionic valency refers to the ability of an atom to combine with other atoms through ionic bonds, which are formed when one atom donates an electron to another. This process results in the formation of charged particles known as ions. The ionic valency of an element is determined by the number of electrons it can lose or gain to achieve a stable electronic configuration, typically resembling that of the nearest noble gas. For instance, sodium (Na) has an ionic valency of +1 because it can lose one electron to achieve a stable configuration. Conversely, chlorine (Cl) has an ionic valency of -1 since it can gain one electron to reach stability. When these two elements react, they form sodium chloride (NaCl), a common table salt, illustrating how ionic valency plays a crucial role in chemical bonding. In addition to sodium and chlorine, many other elements exhibit distinct ionic valency. For example, magnesium (Mg) has an ionic valency of +2 because it can lose two electrons, while oxygen (O) has an ionic valency of -2 as it needs two additional electrons to achieve stability. The combination of magnesium and oxygen leads to the formation of magnesium oxide (MgO), another example of how ionic valency governs the formation of ionic compounds. The concept of ionic valency is not only limited to simple binary compounds; it also extends to polyatomic ions. A polyatomic ion is a group of atoms that collectively have a charge. For instance, the sulfate ion (SO₄²-) has an ionic valency of -2. This means it can bond with cations, such as calcium (Ca²+), which has an ionic valency of +2, to form calcium sulfate (CaSO₄). Understanding how ionic valency works in both simple and complex ions is vital for predicting the behavior of various substances in chemical reactions. Furthermore, ionic valency is crucial in determining the properties of ionic compounds. Ionic compounds tend to have high melting and boiling points due to the strong electrostatic forces between the oppositely charged ions. They also tend to be soluble in water and conduct electricity when dissolved or molten. These characteristics can be explained through the lens of ionic valency, as the strength of the ionic bonds and the arrangement of ions in a lattice structure directly relate to their valencies. In conclusion, grasping the idea of ionic valency is fundamental for students and professionals in the field of chemistry. It not only facilitates the understanding of how different elements interact and form compounds but also provides insights into the properties and behaviors of these compounds. As we continue to explore the vast world of chemistry, the concept of ionic valency remains a cornerstone of our understanding, guiding us in our study of matter and its interactions.

理解离子价的概念对于任何学习化学的人来说都是至关重要的，特别是在离子化合物的背景下。离子价是指一个原子通过离子键与其他原子结合的能力，当一个原子将电子捐赠给另一个原子时就会形成这种键。这一过程导致带电粒子称为离子的形成。元素的离子价由其可以失去或获得的电子数量决定，以实现稳定的电子配置，通常类似于最近的惰性气体。例如，钠（Na）的离子价为+1，因为它可以失去一个电子以达到稳定配置。相反，氯（Cl）的离子价为-1，因为它可以获得一个电子以达到稳定。当这两个元素反应时，它们形成氯化钠（NaCl），一种常见的食盐，这说明了离子价在化学键合中的关键作用。除了钠和氯，许多其他元素也表现出不同的离子价。例如，镁（Mg）的离子价为+2，因为它可以失去两个电子，而氧（O）的离子价为-2，因为它需要两个额外的电子以实现稳定。镁和氧的结合导致镁氧化物（MgO）的形成，这是另一个例子，说明了离子价如何支配离子化合物的形成。离子价的概念不仅限于简单的二元化合物；它还扩展到多原子离子。多原子离子是一组原子集合地具有电荷。例如，硫酸根离子（SO₄²-）的离子价为-2。这意味着它可以与阳离子结合，例如钙（Ca²+），其离子价为+2，形成硫酸钙（CaSO₄）。理解离子价在简单和复杂离子中的作用对于预测各种物质在化学反应中的行为至关重要。此外，离子价对离子化合物的性质的决定也至关重要。离子化合物由于正负离子之间强大的静电力，往往具有高熔点和沸点。它们也往往在水中溶解并在溶解或熔融时导电。这些特征可以通过离子价的视角来解释，因为离子键的强度和离子在晶格结构中的排列直接与它们的价有关。总之，掌握离子价的概念对于化学领域的学生和专业人士至关重要。它不仅有助于理解不同元素如何相互作用并形成化合物，还提供了对这些化合物性质和行为的深入见解。随着我们继续探索化学的广阔世界，离子价的概念仍然是我们理解的基石，引导我们研究物质及其相互作用。