基础无机化学：主族元素及其化合物。
General Inorganic Chemistry: main group elements and their compounds.
每一周期以惰性气体的主族元素结束。
Each period ends with a member of the family of elements called the noble gases.
它们不仅能够与许多过渡金属络合，而且能够与主族元素络合，比如铍、硫、碘等。
They not only bind to any transition metal, but also to main group elements such as beryllium, sulfur, and iodine.
所用的催化剂是由氯化钯和三氯化铁加上第一主族元素的氯化物中的一种组成三金属体系。
The catalyst used is one three-metal system including palladium chloride, ferric chloride and the chloride of one first main group element.
对最近几年镓与主族元素、过渡元素及其他一些典型配体形成的有机镓配合物的研究进展作一概述。
This paper gives a review on the research work of organogallium complexes formed by gallium and main group element, transition element as well as typical ligands.
所有的这些都是来自于第一主族和第二组主族，到第五主族和第六组主族的悬殊，那么元素呢，比如氢气，氮气或氧气那样的分子呢？
All of these from the group one and two through the group five and six elements, but what about elements, what about molecules like hydrogen, or nitrogen, or maybe oxygen?
现在请记住，离子键的形成，从第一族和第二族元素，与六七主族的元素相互构成的。
Now, remember, the formation of the ionic bonds was from group one and group two, and over here with group six and seven.
电辅基共分为两大类，第一类电辅基是由第四主族的元素参与组成的有机基因，而有机硫基团属于第二类电辅基。
The electroauxiliaries have two types. One is the organic group which contains silicon, tin, germanium and other element of IVA group, the other contains organothio group.
电辅基共分为两大类，第一类电辅基是由第四主族的元素参与组成的有机基因，而有机硫基团属于第二类电辅基。
The electroauxiliaries have two types. One is the organic group which contains silicon, tin, germanium and other element of IVA group, the other contains organothio group.
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