七十年代以来,104号、105号元素的合成,各国均有报导,并列人无机化学、中学化学教材之中。106号元素的合成业已成功,推测107号元素不久也将合成出来。那末104号、105号等元素在元素周期系中的位置及其命名如何,简介如下:一、104号105号元素在周期系中的位置众所周知, Since the 1970s, the synthesis of elements 104 and 105 has been reported in all countries and is listed among inorganic chemistry and middle school chemistry textbooks. The synthesis of element 106 has been successful, speculating that elements 107 will soon be synthesized. So No. 104, No. 105 and other elements in the periodic structure of the elements and their names, which are as follows: First, No. 104,105 elements in the periodic system is well known,