1869年,伟大的俄国学者门捷列夫首先表述了化学元素的性质随其原子量而周期变化的定律,预言了几种尚未发现的元素的物理性和化学性。所有这些元素后来都被发现了;门节列叶夫的预言出色地被证实了。近十年来由于原子核物理学及放射化学(Radiochemistry)的蓬勃发展,合成了十种大地上不存在的元素,合成这些元 In 1869, Mendeleev, the great Russian scholar, first described the law of the periodicity of the chemical elements as their atomic mass predicted the physical and chemical properties of several undiscovered elements. All of these elements were later discovered; the prophecy of Lev Yehov was well proven. In the past ten years due to the rapid development of nuclear physics and radiochemistry (Radiochemistry), synthesis of ten kinds of elements that do not exist in the earth, the synthesis of these elements