mendeleev's periodic law

简明释义

门捷列夫周期律

英英释义

例句

1.In chemistry class, we learned about mendeleev's periodic law (门捷列夫的周期律) and how it organizes the elements based on their atomic weights.

在化学课上，我们学习了关于mendeleev's periodic law（门捷列夫的周期律）的内容，以及它是如何根据元素的原子量来组织元素的。

2.Scientists still reference mendeleev's periodic law (门捷列夫的周期律) when discovering new elements.

科学家在发现新元素时仍然参考mendeleev's periodic law（门捷列夫的周期律）。

3.Understanding mendeleev's periodic law (门捷列夫的周期律) is essential for mastering the basics of chemistry.

理解mendeleev's periodic law（门捷列夫的周期律）对掌握化学基础至关重要。

4.Many textbooks explain mendeleev's periodic law (门捷列夫的周期律) in detail to help students understand element classification.

许多教科书详细解释了mendeleev's periodic law（门捷列夫的周期律），以帮助学生理解元素分类。

5.The periodic table is a visual representation of mendeleev's periodic law (门捷列夫的周期律) that helps predict the properties of elements.

周期表是mendeleev's periodic law（门捷列夫的周期律）的可视化表示，帮助预测元素的性质。

作文

The foundation of modern chemistry is built upon the understanding of elements and their interactions. One of the most significant contributions to this field was made by Dmitri Mendeleev in the 19th century. He formulated what is known as Mendeleev's periodic law, which states that the properties of elements are a periodic function of their atomic weights. This revolutionary idea led to the development of the periodic table, a systematic arrangement of elements that showcases their relationships and properties.Mendeleev's work was groundbreaking because, at the time, the elements were not well understood. Many elements had been discovered, but their properties seemed random and chaotic. Mendeleev noticed that when the elements were arranged in order of increasing atomic weight, certain similarities in their chemical properties appeared at regular intervals. This observation was pivotal in establishing a link between an element's atomic structure and its behavior in chemical reactions.One of the remarkable aspects of Mendeleev's periodic law is how it allowed for the prediction of undiscovered elements. Mendeleev left gaps in his periodic table for elements that had not yet been found, predicting their properties based on the trends he observed. For instance, he predicted the existence of gallium and germanium, which were discovered shortly after his publication. This predictive power demonstrated the utility of Mendeleev's periodic law and solidified its importance in the scientific community.The periodic table has evolved since Mendeleev's time, especially with the discovery of new elements and the development of atomic theory. Today, we understand that the periodicity observed in the properties of elements is actually a result of their atomic number, rather than atomic weight. However, Mendeleev's original formulation of Mendeleev's periodic law was crucial in paving the way for these advancements. It provided a framework that scientists could build upon, leading to a deeper understanding of atomic structure and chemical behavior.In addition to its scientific significance, Mendeleev's periodic law has cultural and educational implications. The periodic table is often one of the first things students learn in chemistry classes, serving as a visual representation of the elements and their relationships. It is a powerful tool for teaching and learning, helping students grasp fundamental concepts in chemistry.Moreover, Mendeleev's periodic law symbolizes the beauty of science—the ability to find order in chaos. It represents the human drive to understand the natural world and to seek connections between seemingly disparate phenomena. Mendeleev's legacy continues to influence not only chemists but also anyone who appreciates the elegance of scientific inquiry.In conclusion, Mendeleev's periodic law is a cornerstone of chemistry that has had a lasting impact on our understanding of elements and their interactions. Its formulation marked a significant turning point in the history of science, enabling predictions about the properties of elements and leading to the creation of the periodic table. As we continue to explore the complexities of the universe, Mendeleev's insights remind us of the importance of observation, pattern recognition, and the quest for knowledge in the ever-evolving field of science.

现代化学的基础建立在对元素及其相互作用的理解之上。19世纪，德米特里·门捷列夫对这一领域做出了重要贡献。他提出了被称为门捷列夫周期律的理论，该理论指出，元素的性质是其原子量的周期函数。这一革命性思想导致了周期表的发展，这是元素的系统排列，展示了它们之间的关系和性质。门捷列夫的工作是开创性的，因为在那个时候，元素并没有得到很好的理解。许多元素已经被发现，但它们的性质似乎是随机和混乱的。门捷列夫注意到，当元素按原子量递增的顺序排列时，它们的化学性质在规律的间隔处出现了某些相似性。这一观察对于建立元素的原子结构与其在化学反应中的行为之间的联系至关重要。门捷列夫周期律的一个显著方面是它允许预测未发现的元素。门捷列夫在他的周期表中留出了未发现元素的空白，并根据他观察到的趋势预测了这些元素的性质。例如，他预测了镓和锗的存在，而这两种元素在他出版作品后不久便被发现。这种预测能力展示了门捷列夫周期律的实用性，并巩固了它在科学界的重要性。自门捷列夫时代以来，周期表已经发展，尤其是随着新元素的发现和原子理论的发展。今天，我们了解到，元素性质中观察到的周期性实际上是其原子序数的结果，而非原子量。然而，门捷列夫对门捷列夫周期律的最初表述在促进这些进展方面至关重要。它提供了一个框架，科学家可以在此基础上进行研究，从而加深对原子结构和化学行为的理解。除了科学意义外，门捷列夫周期律还有文化和教育的影响。周期表通常是学生在化学课上学习的第一件事，作为元素及其关系的视觉表现。它是教学和学习的强大工具，帮助学生掌握化学中的基本概念。此外，门捷列夫周期律象征着科学的美——在混沌中寻找秩序的能力。它代表了人类理解自然世界的驱动力，以及寻找看似不相关现象之间联系的追求。门捷列夫的遗产继续影响着化学家以及任何欣赏科学探究优雅的人。总之，门捷列夫周期律是化学的基石，对我们理解元素及其相互作用产生了持久影响。它的形成标志着科学史上的一个重要转折点，使得对元素性质的预测成为可能，促成了周期表的创建。当我们继续探索宇宙的复杂性时，门捷列夫的见解提醒我们，在不断发展的科学领域中，观察、模式识别和知识追求的重要性。