Analysis of information sources in references of the Wikipedia article "元素周期表" in Chinese language version.
... no interruptions in the sequence of increasing atomic numbers ...
It is high time that the idea of group 3 consisting of Sc, Y, La and Ac is abandoned
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... no interruptions in the sequence of increasing atomic numbers ...
Click on 'Finding Aid' to go to full finding aid.
It is high time that the idea of group 3 consisting of Sc, Y, La and Ac is abandoned
It is high time that the idea of group 3 consisting of Sc, Y, La and Ac is abandoned