metallic element

简明释义

金属元素

英英释义

例句

1.Iron is a common metallic element 金属元素 used in construction.

铁是一种常见的金属元素金属元素，用于建筑。

2.Aluminum is a lightweight metallic element 金属元素 that is resistant to corrosion.

铝是一种轻质的金属元素金属元素，耐腐蚀。

3.Copper, a metallic element 金属元素, is often used in electrical wiring.

铜是一种常用的金属元素金属元素，通常用于电线。

4.Gold is a precious metallic element 金属元素 often used in jewelry.

金是一种珍贵的金属元素金属元素，常用于珠宝。

5.Zinc is a metallic element 金属元素 commonly used for galvanizing steel.

锌是一种常用于镀锌钢的金属元素金属元素。

作文

The world around us is composed of various materials, and one of the most significant categories is that of metals. Among these, we find the term metallic element, which refers to elements that possess the characteristics commonly associated with metals. These elements are typically shiny, good conductors of heat and electricity, and are malleable and ductile. To understand the importance of metallic elements, we must delve into their properties, applications, and roles in our daily lives.Firstly, let’s explore the properties of metallic elements. They are found on the left side and in the center of the periodic table. Some common examples include iron, copper, and gold. One defining feature of metallic elements is their ability to conduct electricity. This property is crucial in electrical engineering, where metals like copper are widely used in wiring due to their excellent conductivity. Furthermore, metallic elements are typically characterized by their luster, which gives them a shiny appearance, making them desirable for decorative purposes as well.In addition to their physical properties, metallic elements also exhibit unique chemical behaviors. For instance, they tend to lose electrons easily, forming positive ions. This trait is particularly important in electrochemistry, where metallic elements are involved in reactions that generate electricity, as seen in batteries. The reactivity of these elements can vary greatly; for example, while gold is relatively inert and does not corrode easily, sodium reacts vigorously with water.The applications of metallic elements are vast and varied. In construction, steel, an alloy primarily made of iron, is used due to its strength and durability. In the automotive industry, metals such as aluminum and magnesium are favored for their lightweight properties, contributing to fuel efficiency. Moreover, metallic elements play a vital role in technology; for instance, rare metals like tantalum and niobium are essential in manufacturing electronic components such as capacitors and resistors.Furthermore, metallic elements are indispensable in the field of medicine. Titanium, known for its biocompatibility, is commonly used in surgical implants and prosthetics. Silver possesses antimicrobial properties, making it useful in wound dressings and medical devices. The versatility of metallic elements in various fields highlights their significance in modern society.In conclusion, understanding metallic elements is crucial for appreciating the materials that shape our world. Their unique properties and wide-ranging applications underscore their importance in everyday life, from the infrastructure we rely on to the technology that drives our advancements. As we continue to innovate and explore new uses for metallic elements, it becomes increasingly clear that these substances are not just mere components of the physical world but are integral to the progress and development of human civilization.

我们周围的世界由各种材料组成，其中一个最重要的类别就是金属。在这些材料中，我们发现了“金属元素”这个术语，它指的是具有金属特征的元素。这些元素通常是光亮的，良好的热导体和电导体，并且具有延展性和可塑性。要理解金属元素的重要性，我们必须深入探讨它们的性质、应用及其在日常生活中的作用。首先，让我们探讨金属元素的性质。它们位于周期表的左侧和中央。一些常见的例子包括铁、铜和金。金属元素的一个定义特征是它们导电的能力。这一特性在电气工程中至关重要，像铜这样的金属因其优良的导电性而被广泛用于电线。此外，金属元素通常具有光泽，这使得它们在装饰用途上也颇具吸引力。除了物理性质外，金属元素还表现出独特的化学行为。例如，它们倾向于容易失去电子，形成正离子。这一特性在电化学中尤为重要，金属元素参与产生电能的反应，如电池中所见。这些元素的反应性差异很大；例如，黄金相对惰性，不易腐蚀，而钠与水反应剧烈。金属元素的应用范围广泛而多样。在建筑领域，钢（主要由铁合成的合金）因其强度和耐久性而被使用。在汽车工业中，铝和镁等金属因其轻量特性而受到青睐，有助于提高燃油效率。此外，金属元素在科技领域也发挥着至关重要的作用；例如，钽和铌等稀有金属在制造电子元件如电容器和电阻器中必不可少。此外，金属元素在医学领域也是不可或缺的。钛因其生物相容性而广泛用于外科植入物和假肢。银具有抗菌特性，因此在伤口敷料和医疗设备中非常有用。金属元素在各个领域的多功能性凸显了它们在现代社会中的重要性。总之，理解金属元素对于欣赏塑造我们世界的材料至关重要。它们独特的性质和广泛的应用强调了它们在日常生活中的重要性，从我们依赖的基础设施到推动我们进步的技术。随着我们继续创新和探索金属元素的新用途，越来越明显的是，这些物质不仅仅是物质世界的组成部分，而是人类文明进步和发展的重要组成部分。