noble gas

简明释义

稀有气体

英英释义

例句

1.Neon lights are made using the gas neon, which is a noble gas that emits a bright glow when electrified.

霓虹灯使用氖气制成，氖气是一种在通电时发出明亮光芒的惰性气体。

2.The noble gases are known for their lack of reactivity due to their full valence electron shells.

惰性气体因其完整的价电子层而不易反应而闻名。

3.Inertness is a key characteristic of noble gases, making them ideal for use in lighting.

惰性气体的惰性是其关键特征，使其非常适合用于照明。

4.Helium, a type of noble gas, is commonly used in balloons because it is lighter than air.

氦气，一种惰性气体，常用于气球，因为它比空气轻。

5.Argon, another noble gas, is often used in welding to protect the weld area from atmospheric gases.

氩气，另一种惰性气体，常用于焊接，以保护焊接区域免受大气气体的影响。

作文

The term noble gas refers to a group of chemical elements that are characterized by their lack of reactivity under standard conditions. These gases include helium, neon, argon, krypton, xenon, and radon. The unique properties of noble gases make them fascinating subjects of study in the field of chemistry. Unlike most elements, noble gases have a complete valence shell of electrons, which accounts for their minimal tendency to form bonds with other elements. This stability is what makes them 'noble' in nature, as they do not easily engage in chemical reactions.One of the most well-known applications of noble gases is in lighting. For example, neon lights are famous for their bright, colorful glow, which is produced when an electric current passes through neon gas. Similarly, argon is often used in fluorescent lighting and in welding processes because it creates an inert atmosphere that protects the materials being welded from oxidation.In addition to their practical uses, noble gases also play a significant role in various scientific research fields. For instance, helium, the second lightest noble gas, is crucial in cryogenics, where it is used to cool superconducting magnets. Its low boiling point allows for the maintenance of extremely low temperatures, essential in many advanced technologies.Moreover, noble gases are utilized in the field of medicine. Xenon, for example, is being researched for its potential anesthetic properties, while argon plasma is used in surgical procedures due to its ability to cut tissues with precision while minimizing damage to surrounding areas.Despite their inertness, noble gases are not entirely without interaction. Under specific conditions, some noble gases can form compounds. For instance, xenon can react with fluorine to form xenon fluoride. These reactions, however, are rare and require extreme conditions, further emphasizing the stability of noble gases.The study of noble gases extends beyond practical applications and enters the realm of astrophysics. Helium and neon, for instance, are abundant in stars and contribute to our understanding of stellar processes. The presence of these gases in celestial bodies provides insight into their composition and behavior, helping astronomers piece together the mysteries of the universe.In conclusion, noble gases are a remarkable group of elements that exhibit unique characteristics and play vital roles in various domains, from lighting and medicine to scientific research and astrophysics. Their stability and inertness make them invaluable in both practical applications and theoretical studies. As we continue to explore the properties and potentials of noble gases, we uncover new possibilities that may enhance our understanding of the natural world and improve our technological advancements.

“惰性气体”一词指的是一组化学元素，它们的特点是在标准条件下缺乏反应性。这些气体包括氦、氖、氩、氪、氙和氡。“惰性气体”的独特性质使它们成为化学领域令人着迷的研究对象。与大多数元素不同，“惰性气体”具有完整的价电子层，这解释了它们形成与其他元素的化合物的最小倾向。这种稳定性使它们在本质上是“高贵的”，因为它们不容易参与化学反应。“惰性气体”的一个众所周知的应用是在照明方面。例如，霓虹灯因其明亮、多彩的光芒而闻名，这种光芒是在电流通过氖气时产生的。同样，氩气常用于荧光照明和焊接过程中，因为它能创造出惰性气氛，保护被焊材料免受氧化。除了实际应用外，“惰性气体”在各个科学研究领域也发挥着重要作用。例如，氦这种第二轻的“惰性气体”在低温技术中至关重要，它用于冷却超导磁体。它的低沸点允许维持极低的温度，这在许多先进技术中是必不可少的。此外，“惰性气体”还用于医学领域。例如，氙气正在研究其潜在的麻醉特性，而氩等离子体则因其能够精确切割组织并最小化对周围区域的损伤而被用于外科手术。尽管“惰性气体”不活泼，但并非完全没有相互作用。在特定条件下，一些“惰性气体”可以形成化合物。例如，氙可以与氟反应形成氙氟化物。然而，这些反应是罕见的，需要极端条件，进一步强调了“惰性气体”的稳定性。“惰性气体”的研究不仅限于实际应用，还进入了天体物理学的领域。例如，氦和氖在恒星中丰富存在，有助于我们理解恒星过程。这些气体在天体中的存在提供了关于它们组成和行为的洞察，帮助天文学家拼凑宇宙的奥秘。总之，“惰性气体”是一组显著的元素，表现出独特的特性，并在照明、医学、科学研究和天体物理学等多个领域发挥着重要作用。它们的稳定性和惰性使它们在实际应用和理论研究中都具有不可或缺的价值。随着我们继续探索“惰性气体”的性质和潜力，我们发现了新的可能性，这些可能性可能增强我们对自然世界的理解并改善我们的技术进步。