atomic weight

atomic weight的音标为[əˈtɪmik weɪθ]，基本翻译为“原子量”，速记技巧为“阿铁米克韦次”。

Atomic weight（原子量）这个词的英文词源可以追溯到古希腊语中的“atomos”（原子）和“weight”（重量）。原子量是用来衡量一个原子的质量的一个数值。

变化形式：通常以字母“A”表示，在某些文献中，也使用“atomic weight number”来表示。

相关单词：

1. molecular weight（分子量）：这个词是由“molecule”（分子）和“atomic weight”（原子量）组成的，用来表示分子的质量。

2. isotope（同位素）：这个词是由“isotope”（相同原子序数的不同元素）组成的，用来描述具有相同原子序数但质量不同的原子。

3. atomic number（原子序数）：这个词是由“atomic”（原子的）和“number”（数字）组成的，用来表示元素在周期表中的位置，即该元素原子中质子数。

这些单词在化学和物理学中非常重要，它们反映了原子量和原子结构等基本概念在科学研究中扮演的重要角色。这些概念的发展推动了科学技术的进步，对人类社会产生了深远的影响。

常用短语：

1. atomic weight of hydrogen (H)

2. atomic weight of oxygen (O)

3. atomic weight of carbon (C)

4. atomic weight of nitrogen (N)

5. atomic weight of sulfur (S)

6. atomic weight of phosphorus (P)

7. atomic weight of chlorine (Cl)

双语例句：

1. The atomic weight of hydrogen is 1.09 amu.

氢的原子量为1.09。

2. The atomic weight of oxygen is 16, which is important for chemical reactions.

氧的原子量为16，这对化学反应很重要。

3. The atomic weight of carbon is 12, which is used to calculate the molecular weight of organic compounds.

碳的原子量为12，这是用来计算有机化合物的分子量的。

4. The atomic weight of nitrogen is 14, which is essential for plant growth.

氮的原子量为14，这对植物的生长至关重要。

5. The atomic weight of sulfur is 32, which is important for the production of rubber and other polymers.

硫的原子量为32，这对于橡胶和其他聚合物的生产很重要。

6. The atomic weight of phosphorus is 30, which is used in the production of light bulbs and other electronic devices.

磷的原子量为30，这在灯泡和其他电子设备的生产中有所应用。

7. The atomic weight of chlorine is 35.5, which is essential for the production of many chemicals and pharmaceuticals.

氯的原子量为35.5，这对于许多化学物质和药品的生产至关重要。

英文小作文：

The Atomic Weight of Matter: An Introduction

The atomic weight of matter plays a crucial role in chemistry and physics. It refers to the mass of an atom, which determines its chemical properties and reactivity. Understanding the atomic weight of various elements is essential for understanding the structure and function of molecules and compounds.

Hydrogen, oxygen, carbon, nitrogen, sulfur, phosphorus, and chlorine are some of the common elements that have been studied extensively for their atomic weights. These elements are essential for life and are found in various forms in our environment and in various products we use every day. Understanding their atomic weights helps us better understand the properties and functions of these elements and their compounds.

For instance, hydrogen has an atomic weight of 1.09 amu, making it the lightest element on the periodic table. This property makes it useful in various industrial processes and in hydrogen fuel cells, which are becoming increasingly popular for their clean energy production. On the other hand, chlorine has an atomic weight of 35.5, making it a crucial element in the production of many chemicals and pharmaceuticals.

In conclusion, the atomic weight of matter is an essential concept in chemistry and physics that helps us understand the structure and function of various elements and their compounds. Understanding the atomic weights of common elements such as hydrogen, oxygen, carbon, nitrogen, sulfur, and chlorine is crucial for understanding our world and for developing new technologies and products that are beneficial for our lives.