periodic table of elements

Characteristic in the Periodic Table of Elements at Present

现行化学元素周期表的特点

This paper summarizes the progress made in the study of the Periodic Table of Elements , and discusses its historic development , structure and designing , positions of elements in the periodic table and nature of compounds .

文章综述了元素周期表研究进展，讨论了元素周期表的历史发展，元素周期表的结构和设计思路，元素在周期表中的位置和化合物的性质。

Design and produce TV program about the periodic table of elements

元素周期表录像片的设计和制作

In the periodic table of elements , each element has its own place and number .

周期表中，各个元素都有自己的位号。

These chemical sensitizers comprises of ⅷ group metal complex of Periodic Table of Elements and chalcogen element compounds .

新型增感剂包括元素周期表Ⅷ族金属络合物和硫族元素的化合物。

As trace elements play the important role in human , they must be closely related to their physiological and biochemical functions and their nature to the positions in the periodic table of elements .

微量元素在人体内发挥着重要作用，它们的生理生化功能必然与其性质有关，而其性质与它们在元素周期表中的位置有关。

The Formation of the Hand Periodic Table of Chemical Elements and Its Application

手式元素周期表的构成及其应用

The periodic table of the elements has seven rows . 2

元素周期表有7行。

People who remember the periodic table of the elements from chemistry class might recognize them .

还记得化学元素周期表的人可能认识这种金属。

Dopants for silicon wafers are found in Groups III and V of the Periodic Table of the Elements .

晶圆片搀杂剂可以在元素周期表的III和v族元素中发现。

Taper spiral LINE-FASHION periodic table of the elements

园锥螺旋线式元素周期表

You are allowed to use on the test the official version of the Periodic Table of the Elements which most of you should have by now .

在测试中你们可以使用，化学元素周期表的官方版本，你们应该大部分都有了吧。

Rhenium is a fairly dense , soft metal , which is next to osmium on the periodic table of chemical elements .

铼是一种高密度、低硬度的金属，它在元素周期表中刚好排在锇元素的后面。

Russian chemist who devised the first periodic table of the chemical elements ( 1834-1907 ) .

（1834-1907）设计出第一个化学元素周期表的俄国化学家。