promethium

简明释义

英[prəˈmiːθiəm]美[prəˈmiːθiəm]

n. [化学] 钷（稀土金属元素）

英英释义

单词用法

同义词

反义词

例句

1.Mythological characters that can be found on the periodic table include Tantalus (Tantalum, ta) and his daughter Niobe (Niobium, Nb), and Promethius (Promethium, Pm).

元素表中可以找到神话中的角色，比如坦塔罗斯(钽)和他的女儿尼俄伯(铌)，还有普罗米修斯(钷)。

2.Mythological characters that can be found on the periodic table include Tantalus (Tantalum, ta) and his daughter Niobe (Niobium, Nb), and Promethius (Promethium, Pm).

元素表中可以找到神话中的角色，比如坦塔罗斯(钽)和他的女儿尼俄伯(铌)，还有普罗米修斯(钷)。

3.Due to its radioactivity, promethium must be handled with care.

由于其放射性，promethium必须小心处理。

4.In nuclear batteries, promethium can provide a reliable power source.

在核电池中，promethium可以提供可靠的电源。

5.Scientists use promethium in some types of luminous paint.

科学家在某些类型的发光涂料中使用promethium。

6.The atomic number of promethium is 61.

元素promethium的原子序数是61。

7.The discovery of promethium was significant for the field of nuclear chemistry.

对promethium的发现对核化学领域具有重要意义。

作文

In the vast realm of chemistry and physics, certain elements stand out for their unique properties and applications. One such element is promethium, which is represented by the symbol Pm on the periodic table. This rare earth metal holds a fascinating place in the world of science, particularly due to its radioactivity and its role in various technological advancements. Promethium (钷) is classified as a lanthanide and is primarily known for being one of the few elements that are radioactive and not found in significant quantities in nature. It was discovered in 1945 by scientists who were exploring the fission products of uranium, making it a relatively modern addition to the list of known elements.The significance of promethium extends beyond its discovery; it has practical applications that have made it invaluable in certain fields. For instance, promethium is used in luminous paints, allowing for the creation of glowing dials and watches. This property arises from its ability to emit beta radiation, which interacts with phosphorescent materials to produce light. As a result, instruments and devices that require visibility in low-light conditions often incorporate promethium to ensure functionality and ease of use.Moreover, the potential of promethium in nuclear batteries cannot be overlooked. These batteries utilize the heat generated from the decay of promethium to produce electricity, offering a long-lasting power source for devices that cannot be easily charged or replaced. This application is especially beneficial in space exploration, where traditional power sources may not be feasible. The longevity and reliability of promethium batteries make them an attractive option for powering satellites and other equipment in harsh environments.Despite its benefits, the handling and use of promethium come with challenges. Due to its radioactivity, safety precautions must be taken when working with this element. Researchers and technicians must be trained to manage exposure risks, ensuring that they follow strict protocols to safeguard their health. The disposal of promethium waste also presents environmental considerations, as improper handling can lead to contamination and other hazards.In conclusion, promethium is a remarkable element that exemplifies the intersection of scientific discovery and practical application. Its unique properties, including radioactivity and luminescence, have paved the way for innovations in various industries, particularly in lighting and energy. As research continues to advance, the potential uses of promethium may expand even further, highlighting the importance of understanding and harnessing the elements around us. The study of promethium not only enriches our knowledge of chemistry but also inspires future generations to explore the possibilities that lie within the atomic world.

在化学和物理的广阔领域中，某些元素因其独特的性质和应用而脱颖而出。其中一个元素是promethium，在周期表中用符号Pm表示。这个稀土金属在科学界占有一个迷人的位置，特别是由于它的放射性以及在各种技术进步中的作用。promethium（钷）被归类为镧系元素，主要因其是少数几种放射性元素之一而在自然界中并未以显著数量存在。它是在1945年由科学家们发现的，他们正在探索铀的裂变产物，使其成为已知元素名单中相对较新的添加。promethium的重要性超越了其发现；它具有的实际应用使其在某些领域中变得不可或缺。例如，promethium用于发光涂料，允许制造发光的表盘和手表。这一特性源于它能够发出β辐射，这与磷光材料相互作用以产生光。因此，需要在低光条件下可见的仪器和设备通常会结合使用promethium以确保功能性和易用性。此外，promethium在核电池中的潜力也不容忽视。这些电池利用promethium衰变产生的热量来产生电力，为那些无法轻易充电或更换的设备提供持久的电源。这一应用在太空探索中尤为重要，因为传统的电源可能不可行。promethium电池的持久性和可靠性使其成为为卫星和其他设备在恶劣环境中供电的吸引选项。尽管有其好处，但处理和使用promethium也面临挑战。由于其放射性，在处理该元素时必须采取安全预防措施。研究人员和技术人员必须接受培训，以管理暴露风险，确保他们遵循严格的协议以保障自身健康。promethium废物的处置也提出了环境考虑，因为不当处理可能导致污染和其他危害。总之，promethium是一个非凡的元素，体现了科学发现与实际应用的交汇。其独特的性质，包括放射性和发光性，为各个行业的创新铺平了道路，尤其是在照明和能源领域。随着研究的不断推进，promethium的潜在用途可能进一步扩展，突显了理解和利用我们周围元素的重要性。对promethium的研究不仅丰富了我们对化学的知识，也激励着未来的几代人去探索原子世界中的可能性。