fixed electron

简明释义

束缚电子

英英释义

例句

1.The research focused on how a fixed electron 固定电子 contributes to the overall charge distribution in the material.

研究集中在一个固定电子 固定电子如何对材料的整体电荷分布做出贡献。

2.In a semiconductor, the behavior of a fixed electron 固定电子 can significantly affect its conductivity.

在半导体中，固定电子 固定电子的行为会显著影响其导电性。

3.In ionic compounds, a fixed electron 固定电子 can help stabilize the lattice structure.

在离子化合物中，固定电子 固定电子可以帮助稳定晶格结构。

4.Scientists use models to predict the interactions of fixed electrons 固定电子 with mobile charge carriers.

科学家们使用模型来预测固定电子 固定电子与移动电荷载流子之间的相互作用。

5.The presence of a fixed electron 固定电子 in an atom can influence its ionization energy.

原子中存在的固定电子 固定电子可以影响其电离能。

作文

In the realm of physics and chemistry, the concept of a fixed electron plays a crucial role in understanding atomic structure and bonding. A fixed electron refers to an electron that is associated with a specific atom and does not move freely within a material. This concept is particularly important when discussing ionic and covalent bonds, where electrons are either transferred or shared between atoms. To better understand the significance of a fixed electron, we can consider the example of sodium chloride, commonly known as table salt. In this compound, sodium (Na) donates one of its electrons to chlorine (Cl). The electron that sodium loses becomes a fixed electron in the chlorine atom, allowing it to achieve a stable electronic configuration. This transfer of electrons results in the formation of ions: Na+ and Cl-. The electrostatic attraction between these oppositely charged ions creates a strong ionic bond, which is a direct consequence of the presence of fixed electrons.On the other hand, in covalent bonding, electrons are shared between atoms rather than transferred. For instance, in a water molecule (H2O), each hydrogen atom shares its single electron with the oxygen atom. Here, the electrons involved can also be considered fixed electrons because they occupy specific positions in the molecular structure and contribute to the stability of the bond. The arrangement of these fixed electrons allows for the formation of polar covalent bonds, which are essential for the unique properties of water, such as its high surface tension and boiling point.The concept of fixed electrons extends beyond simple atomic interactions; it is also fundamental in the field of solid-state physics. In metals, some electrons are delocalized, meaning they can move freely throughout the material, contributing to electrical conductivity. However, there are still fixed electrons bound to specific metal atoms, which help maintain the structure of the metal lattice. These fixed electrons play a vital role in determining the physical properties of metals, including malleability, ductility, and thermal conductivity.Moreover, understanding fixed electrons is essential in the development of new materials and technologies. For instance, in semiconductors, the manipulation of fixed electrons through doping can significantly alter the electrical properties of the material. By introducing impurities into a pure semiconductor, scientists can create p-type and n-type materials, which are key components in modern electronic devices like transistors and diodes.In conclusion, the concept of a fixed electron is integral to various scientific fields, providing insights into atomic behavior, chemical bonding, and material properties. Whether in ionic or covalent bonds, or in the context of solid-state physics, fixed electrons help explain the stability and functionality of atoms and molecules. As we continue to explore the intricacies of matter, a deeper understanding of fixed electrons will undoubtedly lead to advancements in technology and materials science, paving the way for innovations that can transform our daily lives.

在物理和化学领域，固定电子的概念在理解原子结构和化学键方面起着至关重要的作用。固定电子是指与特定原子相关联并且不在材料中自由移动的电子。这个概念在讨论离子键和共价键时尤为重要，因为电子要么在原子之间转移，要么被共享。为了更好地理解固定电子的重要性，我们可以考虑氯化钠的例子，通常称为食盐。在这个化合物中，钠（Na）将其一个电子捐赠给氯（Cl）。钠失去的电子成为氯原子中的固定电子，使其能够达到稳定的电子配置。这种电子的转移导致了离子形成：Na+和Cl-。这些带有相反电荷的离子之间的静电吸引力产生了强大的离子键，这直接源于固定电子的存在。另一方面，在共价键中，电子在原子之间共享，而不是转移。例如，在水分子（H2O）中，每个氢原子与氧原子共享其单个电子。在这里，参与的电子也可以被视为固定电子，因为它们占据分子结构中的特定位置，并对键的稳定性做出贡献。这些固定电子的排列允许形成极性共价键，这对于水的独特性质至关重要，例如其高表面张力和沸点。固定电子的概念不仅限于简单的原子相互作用；它在固态物理学领域也是基础。在金属中，一些电子是去局域化的，意味着它们可以在整个材料中自由移动，促进电导率。然而，仍然有一些固定电子绑定在特定的金属原子上，帮助维持金属晶格的结构。这些固定电子在决定金属的物理属性方面发挥着至关重要的作用，包括延展性、可锻性和热导率。此外，理解固定电子在新材料和技术的发展中也是必不可少的。例如，在半导体中，通过掺杂操控固定电子可以显著改变材料的电性。通过向纯半导体中引入杂质，科学家可以创造出p型和n型材料，这些材料是现代电子设备（如晶体管和二极管）的关键组成部分。总之，固定电子的概念在各个科学领域中都是不可或缺的，为我们提供了关于原子行为、化学键和材料属性的深入见解。无论是在离子键还是共价键的背景下，或是在固态物理学的上下文中，固定电子都有助于解释原子和分子的稳定性和功能性。随着我们继续探索物质的复杂性，对固定电子的更深入理解无疑将推动技术和材料科学的进步，为能够改变我们日常生活的创新铺平道路。