rare gas

简明释义

惰性气体

英英释义

例句

1.Scientists study rare gases 稀有气体 to understand their unique properties.

科学家研究稀有气体 稀有气体以了解它们的独特性质。

2.The rare gas 稀有气体 neon emits a bright glow when electrified.

当电离时，稀有气体 稀有气体氖会发出明亮的光。

3.Argon, a rare gas 稀有气体, is often used in welding to protect the weld area.

氩，一种稀有气体 稀有气体，常用于焊接以保护焊接区域。

4.Helium is a common example of a rare gas 稀有气体 used in balloons.

氦是一个常见的稀有气体 稀有气体，用于充气球。

5.The rare gas 稀有气体 xenon is used in high-performance flash lamps.

稀有气体 稀有气体氙用于高性能闪光灯中。

作文

The term rare gas refers to a group of chemical elements that are characterized by their lack of reactivity due to having a full valence shell of electrons. This group includes helium, neon, argon, krypton, xenon, and radon. These elements are found in Group 18 of the periodic table and are sometimes referred to as noble gases. Understanding the properties and applications of rare gases is crucial in various scientific fields, including chemistry, physics, and engineering.One of the most fascinating aspects of rare gases is their unique physical and chemical properties. For instance, helium, the lightest of all rare gases, is not only non-toxic but also has the lowest boiling point of any element. This makes it incredibly useful for applications such as cryogenics and in the cooling of superconducting magnets. Neon, another member of this group, is famous for its ability to emit a bright orange-red light when electrified, which is why it is commonly used in neon signs.Argon, which makes up about 0.93% of the Earth's atmosphere, is widely used in welding and metal fabrication because it provides an inert atmosphere that prevents oxidation. Similarly, krypton and xenon are used in high-performance lighting, such as in certain types of flash lamps and high-intensity discharge lamps. Radon, while being radioactive and hazardous, has been studied for potential use in cancer treatment.The stability of rare gases also leads to their use in various scientific research applications. For example, they are often used in gas chromatography as a carrier gas due to their inertness, allowing for precise measurements without interfering with the sample being analyzed. In addition, rare gases can be utilized in the production of certain types of lasers, where their unique electronic configurations contribute to the generation of specific wavelengths of light.Moreover, the study of rare gases extends beyond their practical applications. Researchers are also interested in their role in the universe. For instance, helium is the second most abundant element in the observable universe and plays a critical role in stellar nucleosynthesis. The presence of rare gases in the atmospheres of distant planets and moons is also a topic of ongoing astronomical research, as it can provide insights into their composition and the processes occurring within them.In conclusion, the significance of rare gases extends far beyond their inert nature. Their unique properties make them invaluable in a variety of applications, from industrial uses to scientific research. As we continue to explore the potential of these fascinating elements, it becomes increasingly clear that rare gases play a pivotal role in both our technological advancements and our understanding of the universe. By studying and harnessing the properties of rare gases, we can unlock new possibilities in science and industry, paving the way for future innovations that may change the world as we know it.

“稀有气体”一词指的是一组化学元素，其特征是由于具有完整的价电子层而缺乏反应性。这组元素包括氦、氖、氩、氪、氙和氡。这些元素在周期表的第18组中，通常被称为惰性气体。理解稀有气体的性质和应用在化学、物理和工程等各个科学领域中至关重要。稀有气体最引人注目的方面之一是它们独特的物理和化学性质。例如，氦是所有稀有气体中最轻的，不仅无毒，而且具有最低的沸点。这使得它在低温技术和超导磁体冷却等应用中极为有用。氖是这一组的另一个成员，以其在通电时发出明亮的橙红色光而闻名，这就是它常用于霓虹灯的原因。氩气约占地球大气的0.93%，广泛用于焊接和金属加工，因为它提供了一种惰性气氛，防止氧化。同样，氪和氙被用于高性能照明，如某些类型的闪光灯和高强度放电灯。氡虽然是放射性的且有害，但已被研究用于癌症治疗的潜在用途。稀有气体的稳定性也使它们在各种科学研究应用中得到使用。例如，由于其惰性，它们常用于气相色谱作为载气，从而允许精确测量而不干扰正在分析的样品。此外，稀有气体可以用于某些类型激光的生产，其中它们独特的电子构型有助于产生特定波长的光。此外，对稀有气体的研究不仅限于它们的实际应用。研究人员还对它们在宇宙中的角色感兴趣。例如，氦是可观测宇宙中第二丰富的元素，在恒星核合成中发挥着关键作用。稀有气体在遥远行星和卫星大气中的存在也是天文学研究的一个持续话题，因为它可以提供有关其组成及其内部发生过程的见解。总之，稀有气体的重要性远不止于其惰性。它们独特的性质使它们在各种应用中不可或缺，从工业用途到科学研究。随着我们继续探索这些迷人元素的潜力，越来越清楚的是，稀有气体在我们的技术进步和对宇宙的理解中发挥着关键作用。通过研究和利用稀有气体的性质，我们可以解锁科学和工业的新可能性，为未来的创新铺平道路，这些创新可能会改变我们所知的世界。