periodic chart

简明释义

周期表

英英释义

例句

1.In chemistry class, we often refer to the periodic chart (元素周期表) to understand the properties of different elements.

在化学课上，我们经常参考periodic chart（元素周期表）来了解不同元素的性质。

2.The periodic chart (元素周期表) is essential for predicting chemical reactions.

对于预测化学反应，periodic chart（元素周期表）是必不可少的。

3.The teacher explained how to read the periodic chart (元素周期表) during the lecture.

老师在讲座中解释了如何阅读periodic chart（元素周期表）。

4.Students are required to memorize the periodic chart (元素周期表) for their upcoming exam.

学生们需要记住periodic chart（元素周期表）以备即将到来的考试。

5.I found a colorful poster of the periodic chart (元素周期表) that makes learning fun.

我找到了一张色彩丰富的periodic chart（元素周期表）海报，使学习变得有趣。

作文

The periodic chart is one of the most significant tools in chemistry and science as a whole. It organizes all known elements based on their atomic number, electron configuration, and recurring chemical properties. The periodic chart provides a systematic way to understand the relationships between different elements, which is essential for both students and professionals in the field. At its core, the periodic chart consists of rows called periods and columns known as groups. Elements in the same group often exhibit similar chemical behaviors due to their similar valence electron configurations. For instance, the alkali metals found in Group 1 are highly reactive and share common properties such as being soft and having low melting points. This organization allows chemists to predict how elements will interact with one another, facilitating the study of chemical reactions.One of the most fascinating aspects of the periodic chart is its historical development. Dmitri Mendeleev, a Russian chemist, first published a version of the chart in 1869. He arranged the elements according to their atomic mass and noticed that certain properties repeated at regular intervals, which led him to create the periodic law. Mendeleev's work laid the foundation for the modern periodic chart, which has been refined over the years to include newly discovered elements and to arrange them by atomic number instead of atomic mass.The periodic chart is not just a static representation of elements; it is a dynamic tool that reflects ongoing scientific discoveries. As new elements are synthesized in laboratories, they are added to the chart, expanding our understanding of matter. For example, elements like oganesson (Og) and livermorium (Lv) were added in recent years, showcasing the continuous evolution of this fundamental scientific tool.In addition to its practical applications, the periodic chart also serves an educational purpose. It is a staple in classrooms around the world, helping students learn about the elements and their properties. Understanding the periodic chart is crucial for anyone studying chemistry, as it provides the framework for exploring more complex concepts such as bonding, molecular structure, and reaction mechanisms.Moreover, the periodic chart has cultural significance as well. It has inspired art, literature, and even music. Artists have created visual representations of the chart, highlighting its beauty and symmetry. Musicians have composed songs that celebrate the elements and their unique characteristics. This intersection of science and culture underscores the importance of the periodic chart beyond the laboratory.In conclusion, the periodic chart is an indispensable tool in the realm of science. It not only categorizes and organizes the elements but also serves as a gateway to understanding the vast complexities of chemistry. Its historical significance, educational value, and cultural impact make the periodic chart a fascinating subject worthy of exploration. As we continue to discover new elements and deepen our understanding of existing ones, the periodic chart will undoubtedly remain a central figure in the scientific community.

周期表是化学和整个科学领域中最重要的工具之一。它根据元素的原子序数、电子配置和重复的化学性质来组织所有已知元素。周期表提供了一种系统化的方法来理解不同元素之间的关系，这对于学生和专业人士都是至关重要的。在其核心，周期表由称为周期的行和称为组的列组成。处于同一组的元素通常由于其相似的价电子配置而表现出相似的化学行为。例如，位于第1组的碱金属是高度反应性的，并且共享一些共同特性，如柔软和低熔点。这种组织方式使化学家能够预测元素之间的相互作用，从而促进了化学反应的研究。周期表最迷人的方面之一是其历史发展。俄国化学家德米特里·门捷列夫于1869年首次发布了周期表的一个版本。他根据元素的原子量排列元素，并注意到某些属性以规则的间隔重复，这促使他创建了周期律。门捷列夫的工作为现代周期表奠定了基础，随着时间的推移，它被不断完善，以包括新发现的元素，并按原子序数而不是原子量进行排列。周期表不仅仅是元素的静态表示；它是一个动态工具，反映了持续的科学发现。随着新元素在实验室中的合成，它们被添加到表中，扩展了我们对物质的理解。例如，像俄根（Og）和利弗莫尔（Lv）这样的元素近年来被添加，展示了这一基本科学工具的持续演变。除了其实际应用外，周期表还具有教育意义。它是世界各地教室的常见教材，帮助学生学习元素及其特性。理解周期表对于任何学习化学的人来说都是至关重要的，因为它提供了探索更复杂概念的框架，例如键合、分子结构和反应机制。此外，周期表也具有文化意义。它激发了艺术、文学甚至音乐。艺术家创造了周期表的视觉表现，突显其美丽和对称性。音乐家创作了庆祝元素及其独特特性的歌曲。这种科学与文化的交汇突显了周期表在实验室之外的重要性。总之，周期表是科学领域不可或缺的工具。它不仅对元素进行分类和组织，还作为理解化学复杂性的入口。其历史意义、教育价值和文化影响使得周期表成为一个值得探索的迷人主题。随着我们继续发现新元素并加深对现有元素的理解，周期表无疑将继续在科学界中占据中心地位。