atomic weight

简明释义

原子量原子重量

英英释义

例句

1.The atomic weight of carbon is approximately 12.01, which means it is a fundamental building block of life.

碳的原子量大约为12.01，这意味着它是生命的基本构建块。

2.To find the atomic weight of chlorine, you can refer to the latest scientific literature or a reliable database.

要查找氯的原子量，您可以参考最新的科学文献或可靠的数据库。

3.When calculating the molar mass of a compound, you need to consider the atomic weight of each element involved.

在计算化合物的摩尔质量时，您需要考虑每个元素的原子量。

4.In nuclear chemistry, the atomic weight can affect the stability of isotopes.

在核化学中，原子量会影响同位素的稳定性。

5.The periodic table lists the atomic weight of each element, which is crucial for understanding chemical reactions.

周期表列出了每个元素的原子量，这对于理解化学反应至关重要。

作文

The concept of atomic weight plays a crucial role in the field of chemistry and physics. It provides essential information about the mass of an atom relative to the mass of carbon-12, which is the standard for measuring atomic masses. Understanding atomic weight helps scientists determine how elements will react with one another and predict the behavior of compounds formed during chemical reactions.To grasp the significance of atomic weight, one must first understand what it represents. The atomic weight of an element is not a whole number because it takes into account the natural isotopic distribution of that element. For instance, chlorine has two stable isotopes: chlorine-35 and chlorine-37. The atomic weight of chlorine, approximately 35.5, reflects the weighted average of these isotopes based on their relative abundances in nature. This characteristic of atomic weight is vital for chemists when calculating molar masses and stoichiometry in chemical equations.In practical applications, atomic weight is used extensively in various fields such as medicine, engineering, and environmental science. In pharmacology, for example, understanding the atomic weight of different elements allows researchers to design effective drugs that can interact with biological systems at the molecular level. By knowing the atomic weight of compounds, scientists can better predict how they will behave within the human body, leading to safer and more effective medications.Moreover, atomic weight also plays a significant role in environmental studies. Scientists analyze the atomic weight of elements found in pollutants to trace their sources and understand their impact on ecosystems. For instance, by studying the atomic weight of heavy metals in soil and water, researchers can identify contamination sources and develop strategies to mitigate environmental damage.The importance of atomic weight extends beyond scientific research; it also influences industries such as agriculture and manufacturing. In agriculture, the atomic weight of nutrients is crucial for understanding soil composition and fertility. Farmers rely on this knowledge to optimize fertilizer use, ensuring that crops receive the right balance of elements needed for growth. Similarly, in manufacturing, the atomic weight of materials affects their properties and suitability for various applications. Engineers must consider the atomic weight when selecting materials for construction, electronics, and other products to ensure durability and performance.In conclusion, the concept of atomic weight is fundamental to the understanding of chemistry and its applications across various fields. It serves as a bridge connecting theoretical knowledge with practical applications, allowing scientists and professionals to make informed decisions based on the properties of elements and compounds. As our understanding of atomic weight continues to grow, so too does our ability to innovate and solve complex problems in science, medicine, and industry. The study of atomic weight not only enriches our understanding of the natural world but also enhances our capacity to improve it through technology and sustainable practices.

“原子量”这一概念在化学和物理领域中起着至关重要的作用。它提供了关于原子相对于碳-12质量的信息，碳-12是测量原子质量的标准。理解“原子量”有助于科学家确定元素之间的反应方式，并预测在化学反应中形成的化合物的行为。要理解“原子量”的重要性，首先必须了解它所代表的含义。一个元素的“原子量”不是一个整数，因为它考虑了该元素的自然同位素分布。例如，氯具有两个稳定同位素：氯-35和氯-37。氯的“原子量”约为35.5，反映了这些同位素根据其在自然界中的相对丰度的加权平均值。“原子量”的这一特性对化学家在计算摩尔质量和化学方程式中的化学计量时至关重要。在实际应用中，“原子量”在医学、工程和环境科学等多个领域被广泛使用。例如，在药理学中，了解不同元素的“原子量”使研究人员能够设计出能够与生物系统在分子水平上相互作用的有效药物。通过了解化合物的“原子量”，科学家可以更好地预测它们在人体内的行为，从而开发出更安全、更有效的药物。此外，“原子量”在环境研究中也发挥着重要作用。科学家分析污染物中元素的“原子量”，以追踪其来源并了解其对生态系统的影响。例如，通过研究土壤和水中重金属的“原子量”，研究人员可以识别污染源，并制定减少环境损害的策略。“原子量”的重要性不仅限于科学研究；它还影响农业和制造等行业。在农业中，营养元素的“原子量”对理解土壤成分和肥力至关重要。农民依靠这一知识来优化肥料使用，确保作物获得生长所需的适当元素平衡。同样，在制造业中，材料的“原子量”会影响其特性和适用性。工程师在选择建筑、电子产品和其他产品的材料时，必须考虑“原子量”，以确保耐用性和性能。总之，“原子量”的概念是理解化学及其在各个领域应用的基础。它作为理论知识与实际应用之间的桥梁，使科学家和专业人士能够根据元素和化合物的特性做出明智的决策。随着我们对“原子量”的理解不断深入，我们解决科学、医学和工业中复杂问题的能力也在增强。对“原子量”的研究不仅丰富了我们对自然世界的理解，而且增强了我们通过技术和可持续实践改善自然世界的能力。