chemical binding

简明释义

化学键

英英释义

例句

1.In proteins, chemical binding plays a crucial role in maintaining their structure.

在蛋白质中，化学键合在维持其结构方面起着至关重要的作用。

2.Understanding chemical binding is essential for drug design.

理解化学键合对药物设计至关重要。

3.The process of chemical binding can be influenced by temperature and pressure.

化学键合的过程可以受到温度和压力的影响。

4.Different types of chemical binding include ionic, covalent, and hydrogen bonds.

不同类型的化学键合包括离子键、共价键和氢键。

5.The strength of chemical binding affects the stability of the molecule.

化学键合的强度影响分子的稳定性。

作文

Chemical binding is a fundamental concept in chemistry that explains how atoms and molecules interact with one another. Understanding chemical binding (化学键合) is crucial for grasping the principles of molecular formation, reactivity, and stability. At its core, chemical binding refers to the forces that hold atoms together in compounds and determine the structure and properties of those compounds.There are primarily two types of chemical binding (化学键合): ionic bonds and covalent bonds. Ionic bonds occur when electrons are transferred from one atom to another, resulting in the formation of charged ions. These oppositely charged ions attract each other, creating a strong bond that holds them together. For example, sodium chloride, or table salt, is formed through an ionic bond between sodium and chlorine atoms. The transfer of an electron from sodium to chlorine results in the formation of Na+ and Cl- ions, which are held together by electrostatic forces.On the other hand, covalent bonds involve the sharing of electrons between atoms. In this type of chemical binding (化学键合), atoms come together to achieve a full outer electron shell, which is often referred to as the octet rule. A common example of covalent bonding can be seen in water (H2O), where each hydrogen atom shares an electron with the oxygen atom, forming a stable molecule. The strength of covalent bonds can vary depending on the number of shared electron pairs; for instance, double and triple bonds involve sharing two or three pairs of electrons, respectively, leading to stronger connections between atoms.In addition to ionic and covalent bonds, there are also weaker interactions known as van der Waals forces and hydrogen bonds. While these interactions are not classified as true chemical binding (化学键合), they play a significant role in the behavior of molecules, particularly in biological systems. Hydrogen bonds, for example, are crucial for the structure of DNA, where they hold the complementary strands together, allowing for the double helix formation.The study of chemical binding (化学键合) extends beyond just understanding how atoms connect; it also encompasses the energy changes associated with these interactions. When bonds are formed or broken, energy is either released or absorbed, which is a key concept in thermodynamics. This energy change is vital in chemical reactions, influencing reaction rates and equilibrium positions.Furthermore, the concept of chemical binding (化学键合) is essential in various applications, including material science, pharmacology, and biochemistry. For instance, the design of new drugs often relies on understanding how molecules bind to specific biological targets. By manipulating chemical binding (化学键合) interactions, scientists can develop more effective medications with fewer side effects.In conclusion, mastering the concept of chemical binding (化学键合) is essential for anyone studying chemistry or related fields. It provides a foundation for understanding how substances interact, how chemical reactions occur, and how new materials can be designed. As we continue to explore the complexities of matter at the molecular level, the principles of chemical binding (化学键合) will remain a central focus of scientific inquiry and innovation.

化学键合是化学中的一个基本概念，它解释了原子和分子之间是如何相互作用的。理解化学键合(chemical binding)对于掌握分子形成、反应性和稳定性的原则至关重要。化学键合的核心是指将原子结合在一起的力量，以及决定这些化合物的结构和性质。主要有两种类型的化学键合(chemical binding)：离子键和共价键。当电子从一个原子转移到另一个原子时，就会发生离子键，形成带电的离子。这些带相反电荷的离子相互吸引，形成一种强烈的结合。例如，氯化钠或食盐就是通过钠和氯原子之间的离子键形成的。电子从钠转移到氯，导致Na+和Cl-离子的形成，这些离子通过静电力结合在一起。另一方面，共价键涉及原子之间的电子共享。在这种类型的化学键合(chemical binding)中，原子结合在一起以实现完整的外层电子壳，通常称为八电子规则。水（H2O）就是共价键的一个常见示例，其中每个氢原子与氧原子共享一个电子，从而形成一个稳定的分子。共价键的强度可以根据共享的电子对的数量而变化；例如，双键和三键涉及共享两个或三个电子对，从而导致原子之间更强的连接。除了离子键和共价键，还有一些较弱的相互作用称为范德华力和氢键。虽然这些相互作用不被归类为真正的化学键合(chemical binding)，但它们在分子的行为中扮演着重要角色，特别是在生物系统中。例如，氢键对于DNA的结构至关重要，它将互补链结合在一起，从而允许双螺旋结构的形成。对化学键合(chemical binding)的研究不仅仅局限于理解原子如何连接；它还包括与这些相互作用相关的能量变化。当键被形成或打破时，能量会释放或吸收，这在热力学中是一个关键概念。这种能量变化对于化学反应至关重要，影响反应速率和化学平衡的位置。此外，化学键合(chemical binding)的概念在材料科学、药理学和生物化学等多个应用中至关重要。例如，新药物的设计往往依赖于理解分子如何与特定生物靶标结合。通过操控化学键合(chemical binding)的相互作用，科学家可以开发出更有效的药物，副作用更少。总之，掌握化学键合(chemical binding)的概念对于任何学习化学或相关领域的人来说都是至关重要的。它为理解物质如何相互作用、化学反应如何发生以及如何设计新材料提供了基础。随着我们继续探索分子层面上物质的复杂性，化学键合(chemical binding)的原则将始终是科学探究和创新的核心焦点。