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一、钪的地球化学特征钪在元素周期表上位于第四周期第三族,属过渡元素类的稀土元素。它的原子序为21,是一个奇数元素,具有奇数的原子量(44.956≈45)和奇数的电价(+3)。在戈尔德施密特的元素地球化学分类中,钪属于亲石元素,位于戈氏原子容积曲线第三个凹陷的上升部分。Рехарский(1976)将其归为基性元素。在费尔斯曼的对角线系列中,钪的离子半径(0.81)与Li~(1+)(0.82)、Mg~(2+)(0·80)、Zr~(4+)
First, the geochemical characteristics of scandium Scandium in the periodic table in the fourth cycle of the third group, is a transition element class of rare earth elements. Its atomic number is 21, an odd element with an odd atomic weight (44.956 ≈ 45) and an odd price (+3). In the elemental geochemical classification of Gold Schmidt, scandium belongs to the lithophile element and lies in the ascending part of the third depression of the Gaussian atomic volume curve. Рехарский (1976) classified as a basic element. In Felsman’s diagonal series, the scandium ion radius (0.81) is proportional to Li ~ (1 +) (0.82), Mg ~ (2 +) (0 · 80), Zr ~ (4+)