international atomic weight

简明释义

国际原子量

英英释义

例句

1.The periodic table lists the international atomic weight 国际原子量 of each element for easy reference.

周期表列出了每种元素的国际原子量以便于参考。

2.The international atomic weight 国际原子量 of hydrogen is essential for calculating stoichiometry in reactions.

氢的国际原子量对于计算反应中的化学计量是至关重要的。

3.In chemistry, understanding the international atomic weight 国际原子量 helps in balancing chemical equations.

在化学中，理解国际原子量有助于平衡化学方程式。

4.The scientist referred to the international atomic weight 国际原子量 of carbon when calculating the compound's molecular mass.

科学家在计算化合物的分子质量时参考了碳的国际原子量。

5.Researchers must use the correct international atomic weight 国际原子量 to ensure accurate results in their experiments.

研究人员必须使用正确的国际原子量以确保实验结果的准确性。

作文

The concept of international atomic weight is fundamental in the field of chemistry and physics. It serves as a standard measurement that allows scientists to quantify the mass of atoms relative to one another. This standardization is crucial because it ensures consistency across various scientific disciplines and applications. The international atomic weight is determined based on the relative abundance of isotopes of an element found in nature, which means that the atomic weight of an element can vary slightly depending on its source. For example, the atomic weight of carbon is approximately 12.01, reflecting the natural isotopic composition of carbon found on Earth.Understanding the international atomic weight helps in numerous practical applications. One of the primary uses is in stoichiometry, where chemists calculate the amounts of reactants and products involved in chemical reactions. By knowing the atomic weights of elements, chemists can predict how much of a substance is required to produce a desired amount of product. This is especially important in industries such as pharmaceuticals, where precise measurements are essential for creating effective medications.Moreover, the international atomic weight plays a significant role in the field of environmental science. Scientists studying the composition of pollutants in the atmosphere or water sources often rely on atomic weights to identify and quantify harmful substances. For instance, understanding the atomic weight of lead allows researchers to assess its impact on human health and the environment, leading to better regulatory measures and public safety initiatives.Another interesting aspect of the international atomic weight is its historical context. The concept has evolved over time, with early scientists using different methods to measure atomic mass. The adoption of the international atomic weight system has provided a unified approach that facilitates international collaboration in scientific research. The International Union of Pure and Applied Chemistry (IUPAC) regularly updates the atomic weights of elements based on the latest research findings, ensuring that scientists worldwide have access to the most accurate data.In conclusion, the international atomic weight is more than just a number; it represents a collective effort by the scientific community to establish a reliable framework for measuring atomic mass. Its implications extend beyond the laboratory, influencing various fields such as medicine, environmental science, and industry. As our understanding of atomic structure and isotopes continues to grow, the international atomic weight will undoubtedly remain a cornerstone of scientific inquiry and application. By grasping the significance of this term, we can appreciate the intricacies of the natural world and the importance of precision in scientific endeavors.

国际原子量的概念在化学和物理学领域中是基础的。它作为一种标准测量，使科学家能够相对量化原子的质量。这种标准化至关重要，因为它确保了各个科学学科和应用之间的一致性。国际原子量是基于自然界中元素同位素的相对丰度来确定的，这意味着元素的原子量可能会根据其来源略有不同。例如，碳的原子量大约为12.01，反映了地球上发现的碳的自然同位素组成。理解国际原子量在许多实际应用中有帮助。主要用途之一是在化学计量学中，化学家计算参与化学反应的反应物和产物的数量。通过了解元素的原子量，化学家可以预测产生所需数量的产品所需的物质量。这在制药等行业中尤其重要，因为精确的测量对制造有效药物至关重要。此外，国际原子量在环境科学领域也发挥着重要作用。研究大气或水源中污染物成分的科学家通常依赖原子量来识别和量化有害物质。例如，了解铅的原子量使研究人员能够评估其对人类健康和环境的影响，从而导致更好的监管措施和公共安全倡议。国际原子量的另一个有趣方面是其历史背景。随着时间的推移，这一概念不断演变，早期科学家使用不同的方法来测量原子质量。采用国际原子量系统提供了一种统一的方法，促进了科学研究中的国际合作。国际纯粹与应用化学联合会（IUPAC）定期根据最新的研究结果更新元素的原子量，确保全球科学家都能获得最准确的数据。总之，国际原子量不仅仅是一个数字；它代表了科学界共同努力建立可靠的原子质量测量框架。其影响超越实验室，影响医学、环境科学和工业等多个领域。随着我们对原子结构和同位素理解的不断深入，国际原子量无疑将继续成为科学探究和应用的基石。通过掌握这个术语的意义，我们可以欣赏自然世界的复杂性以及科学工作中精确性的必要性。