Come and get to know some valuable and rare words. Remember the periodic table of elements?

Many rare words in Chinese are not commonly used. We can recognize some valid rare words, such as the names used for the elements in the periodic table. There are currently 118 elements recorded in the periodic table. Among them, the horizontal rows of the periodic table are called period, and the vertical columns are called group. Generally speaking, within the same period, metallic elements are located at the left end of the table and non-metals at the right end; aspects in the same group mostly have similar chemical properties. #PeriodicTable #PopularScience

[@ebaby0109]

这个视频的工作量有点大，不过宝哥我完成了。对了，从1分钟开始会特别好看。