periodic law of elements

例句：

1. 1.The periodic law of elements is crucial for understanding the behavior of matter.
   元素周期律对于理解物质的行为至关重要。
2. 2. The periodic table of elements is a visual representation of the chemical properties of all known elements.
   元素周期表是所有已知元素的化学属性的视觉表示。
3. 3.The periodic law of elements explains why certain elements are more reactive than others.
   元素周期律解释了为什么某些元素比其他元素更易反应。