Mellor's Periodic Series of the Elements
Mellor's periodic series of the elements lists the rare earths as a vertical column below Y in Group III. Element Z=61, is identified as Il, illinium.
The peculiarities of Ce, Eu, Tb and Yb are not evident. U is positioned below W emphasizing its 6+ oxidation state.
From Michael Laing's paper: A Revised Periodic Table with the Lanthanides Repositioned, Found. Chem. (2005) 7: 203–233
|Periodic Table, What is it showing?||
© Mark R. Leach 1999-
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