门捷列夫早在创建元素周期系理论的初期,就已经考虑周期系两端的界限问题了。随后,这个问题便成为化学家和物理学家长期探索的重要课题,但问题一直未完全解决。尤其重元素一端的界限问题,目前仍然争论颇多,意见纷云。该课题是周期系理论研究 Mendeleev as early as the beginning of the creation of the theory of periodic elements of the system, we have already considered the boundaries of the two ends of the cycle of the problem. Subsequently, this issue has become a long-term exploration of chemists and physicists an important issue, but the problem has not been fully resolved. In particular, the boundaries of heavy elements at one end are still debated a lot, opinions vary. The subject is the theory of periodic system