protactinium

简明释义

英[ˌprəʊtækˈtɪniəm]美[ˌproʊtækˈtɪniəm]

n. [化学]镤（元素符号 Pa, 等于 protoactinium）

英英释义

单词用法

同义词

反义词

例句

1.In color and fabric, is based on popular trends this year, chose to protactinium gather green camouflage fabric;

在色彩和面料上，是根据今年流行趋势，选择了返镤归真的绿色迷彩面料；

2.In color and fabric, is based on popular trends this year, chose to protactinium gather green camouflage fabric;

在色彩和面料上，是根据今年流行趋势，选择了返镤归真的绿色迷彩面料；

3.The element protactinium is used in nuclear reactors for its radioactive properties.

元素铀铅因其放射性特性而用于核反应堆。

4.Scientists study protactinium to understand the behavior of actinides.

科学家研究铀铅以理解锕系元素的行为。

5.The half-life of protactinium is about 32,760 years, making it a long-lived isotope.

铀铅的半衰期约为32,760年，使其成为一种长寿命同位素。

6.In the periodic table, protactinium is located between uranium and thorium.

在周期表中，铀铅位于铀和钍之间。

7.The extraction of protactinium from uranium ores requires advanced chemical techniques.

从铀矿石中提取铀铅需要先进的化学技术。

作文

In the realm of chemistry and physics, the study of elements is crucial for understanding the universe around us. One such element that often piques the interest of scientists and students alike is protactinium. 镤, with the symbol Pa and atomic number 91, is a rare and radioactive actinide metal that plays a significant role in the periodic table. Its discovery dates back to the early 20th century, when chemists were exploring the properties of uranium and thorium. The name protactinium itself is derived from the Greek word 'protos', meaning first, and 'actinium', indicating its position as the precursor to actinium in the decay chain of uranium-235. Protactinium is not only fascinating because of its unique properties but also due to its applications in various fields. For instance, it has been studied for its potential use in nuclear reactors and as a fuel source. The isotope protactinium-231, which has a half-life of approximately 32,760 years, is particularly interesting to researchers. It can be used in dating geological formations and understanding the history of the Earth’s crust. One of the challenges associated with protactinium is its scarcity and the difficulty in isolating it. Found primarily in trace amounts in uranium ores, extracting protactinium requires sophisticated techniques and safety precautions due to its radioactivity. As a result, it is not commonly encountered outside specialized laboratories or research facilities. Moreover, the study of protactinium contributes to our understanding of nuclear chemistry and the behavior of heavy elements. Its radioactive nature allows scientists to investigate the fundamental principles of radioactivity, including alpha decay and the processes that govern the stability of atomic nuclei. This research has broader implications, such as improving our knowledge of nuclear waste management and the development of advanced materials for nuclear energy. Despite its rarity, protactinium has captured the attention of scientists who are continually seeking to uncover its secrets. Ongoing research aims to explore its chemical properties, potential uses in technology, and implications for environmental science. For instance, understanding how protactinium behaves in natural environments can help assess its impact on ecosystems and human health, particularly in areas where uranium mining occurs. In conclusion, protactinium is more than just a chemical element; it represents a gateway to deeper scientific inquiry and exploration. Its unique characteristics and applications make it a subject of ongoing research, highlighting the importance of understanding the building blocks of matter. As we continue to study elements like protactinium, we gain insights not only into the nature of the universe but also into the potential for future technological advancements. The journey of discovery surrounding protactinium exemplifies the ever-evolving landscape of science, where each element holds the promise of new knowledge waiting to be uncovered.

在化学和物理学的领域中，元素的研究对于理解我们周围的宇宙至关重要。其中一个常常引起科学家和学生兴趣的元素是protactinium。镤，其符号为Pa，原子序数为91，是一种稀有的放射性锕系金属，在周期表中扮演着重要角色。它的发现可以追溯到20世纪初，当时化学家们正在探索铀和钍的性质。protactinium这个名字本身源于希腊语中的“protos”，意为第一，以及“actinium”，表示它在铀-235的衰变链中作为铀的前体。 Protactinium不仅因其独特的性质而引人入胜，还因其在各个领域的应用而备受关注。例如，它已被研究用于核反应堆及作为燃料来源。protactinium-231同位素，其半衰期约为32,760年，特别引起研究人员的兴趣。它可以用于地质形成的年代测定，并帮助理解地球地壳的历史。 与protactinium相关的一个挑战是其稀缺性以及分离它的难度。主要以微量形式存在于铀矿石中，提取protactinium需要复杂的技术和安全预防措施，因为它具有放射性。因此，除专业实验室或研究机构外，通常不常见到它。 此外，protactinium的研究有助于我们理解核化学和重元素的行为。其放射性特性使科学家能够研究放射性的基本原理，包括阿尔法衰变以及支配原子核稳定性的过程。这项研究具有更广泛的意义，例如改善我们对核废物管理的认识以及开发先进的核能材料。 尽管protactinium稀少，但它吸引了科学家的注意，他们不断寻求揭示其秘密。持续的研究旨在探索其化学性质、在技术中的潜在应用以及对环境科学的影响。例如，了解protactinium在自然环境中的行为可以帮助评估其对生态系统和人类健康的影响，特别是在铀矿开采的地区。 总之，protactinium不仅仅是一个化学元素；它代表了深入科学探究和探索的入口。其独特的特征和应用使其成为持续研究的主题，突显了理解物质构建块的重要性。当我们继续研究像protactinium这样的元素时，我们不仅获得了对宇宙本质的见解，还对未来技术进步的潜力有了更深刻的理解。围绕protactinium的发现之旅体现了科学不断发展的格局，在这里，每一个元素都蕴含着等待被揭开的新知识的承诺。