reactive element

简明释义

电抗元件

英英释义

例句

1.A reactive element 反应性元素 in the atmosphere can trigger a chain reaction in certain conditions.

在特定条件下，大气中的反应性元素可以引发连锁反应。

2.The reactive elements 反应性元素 in the alloy can lead to corrosion if not properly managed.

如果管理不当，合金中的反应性元素可能会导致腐蚀。

3.The periodic table lists several reactive elements 反应性元素 such as sodium and potassium.

元素周期表列出了几个反应性元素，如钠和钾。

4.When designing batteries, engineers must consider the reactive elements 反应性元素 involved in the electrochemical reactions.

在设计电池时，工程师必须考虑参与电化学反应的反应性元素。

5.In a chemical reaction, the presence of a reactive element 反应性元素 can significantly alter the outcome.

在化学反应中，反应性元素的存在可以显著改变结果。

作文

In the realm of chemistry and materials science, the term reactive element refers to a substance that readily undergoes chemical reactions with other elements or compounds. These elements are characterized by their ability to form bonds and create new substances when they interact with different materials. Understanding the behavior of reactive elements is crucial for various applications, including the development of new materials, catalysts, and even in biological systems. One of the most well-known reactive elements is oxygen, which is essential for combustion and respiration. In the presence of fuel, oxygen reacts vigorously, releasing energy in the form of heat and light. This reaction is fundamental to many industrial processes, such as the production of steel, where iron ore is reduced using carbon in the presence of oxygen. The reactivity of oxygen also plays a significant role in environmental science, particularly in understanding oxidative stress in living organisms, where reactive oxygen species can lead to cellular damage.Another example of a reactive element is sodium, a highly reactive metal that reacts explosively with water. When sodium comes into contact with water, it forms sodium hydroxide and hydrogen gas, releasing a considerable amount of heat. This property is not only fascinating from a scientific perspective but also has practical implications, especially in the field of chemistry education. Demonstrations involving sodium and water capture the attention of students and highlight the importance of safety when handling reactive materials.The periodic table provides insight into the reactivity of elements. Generally, metals located on the left side of the table, such as alkali metals, are more reactive than those on the right side, like noble gases. The reactivity of an element can often be predicted based on its electron configuration. For instance, elements that have one or two electrons in their outer shell tend to lose those electrons easily, making them highly reactive. Conversely, elements with full outer shells, like the noble gases, are considered stable and unreactive.In industrial applications, reactive elements are utilized to create catalysts that speed up chemical reactions without being consumed in the process. For example, platinum is a reactive element used in catalytic converters in vehicles to facilitate the conversion of toxic gases into less harmful emissions. The ability of these elements to interact with various compounds makes them invaluable in optimizing chemical processes and reducing environmental impact.Moreover, in biological systems, reactive elements are vital for life. For example, trace elements like iron and zinc are essential for enzyme function and play a role in metabolic pathways. Iron, in particular, is a key component of hemoglobin, allowing for oxygen transport in the blood. Understanding how these reactive elements function at a molecular level can lead to advancements in medicine and nutrition, highlighting their significance beyond just chemical reactions.In conclusion, the concept of reactive elements is integral to multiple fields, from chemistry and materials science to biology and environmental studies. Their ability to engage in chemical reactions underpins many processes that are essential for both industrial applications and biological functions. As research continues to evolve, the exploration of reactive elements will undoubtedly lead to new discoveries and innovations that could shape our understanding of the natural world and improve technology for future generations.

在化学和材料科学领域，术语反应性元素指的是一种容易与其他元素或化合物发生化学反应的物质。这些元素的特点是它们能够在与不同材料相互作用时形成化学键并创造新物质。理解反应性元素的行为对各种应用至关重要，包括新材料、催化剂的开发，甚至在生物系统中。最著名的反应性元素之一是氧，它对燃烧和呼吸至关重要。在燃料存在的情况下，氧会剧烈反应，释放出热量和光。这个反应是许多工业过程的基础，例如在生产钢铁时，铁矿石在氧气的存在下用碳还原。氧的反应性在环境科学中也起着重要作用，特别是在理解活生物体中的氧化应激时，活性氧种类可能导致细胞损伤。另一个反应性元素的例子是钠，这是一种高度反应性的金属，与水发生爆炸性反应。当钠与水接触时，它会形成氢氧化钠和氢气，并释放出大量热量。这种特性不仅从科学角度令人着迷，而且在化学教育领域也具有实际意义。涉及钠和水的演示吸引了学生的注意，并突显了处理反应性材料时安全的重要性。周期表提供了有关元素反应性的见解。通常，位于表左侧的金属，例如碱金属，比右侧的金属（如惰性气体）更具反应性。元素的反应性通常可以根据其电子配置进行预测。例如，外壳中有一个或两个电子的元素往往容易失去这些电子，从而使它们具有高度反应性。相反，具有完整外壳的元素，如惰性气体，被认为是稳定且不反应的。在工业应用中，反应性元素被用于创造催化剂，加速化学反应而不被消耗。例如，铂是一种用于汽车催化转换器的反应性元素，可以促进有毒气体转化为较少有害的排放。这些元素与各种化合物相互作用的能力使它们在优化化学过程和减少环境影响方面变得不可或缺。此外，在生物系统中，反应性元素对生命至关重要。例如，铁和锌等微量元素对酶功能至关重要，并在代谢途径中发挥作用。铁尤其是血红蛋白的关键成分，使得氧气能够在血液中运输。理解这些反应性元素在分子水平上的功能可以推动医学和营养学的进步，突显它们不仅仅是化学反应的意义。总之，反应性元素的概念在多个领域中都是不可或缺的，从化学和材料科学到生物学和环境研究。它们参与化学反应的能力是许多工业应用和生物功能的基础。随着研究的不断发展，探索反应性元素无疑将导致新的发现和创新，这些发现和创新可能会塑造我们对自然世界的理解，并改善未来几代人的技术。