User:DePiep/PT/18-column-IKEA-skills

Mental states with the periodic table

• Understanding and appreciation of the Periodic Table should not require IKEA assembly manuals & skills

Mendeleev, 1871

1871–

Wikipedia reader trying to understand an 18-column periodic table

Early XXI century

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Periodic Table, 10k visitors per day

DePiep (talk) 20:02, 10 January 2022 (UTC)

Scerri

"I suggest that any reluctance to accept this group-ing as opposed to the more frequently seen group-ing of Sc, Y, La, and Ac (as shown in figure 5) stems entirely from a reluctance to display the periodic table in its 32-column format. If this obstacle is removed and the rare earths are taken up into the main body of the table the choice of how to do so is almost entirely in favor of a group 3 consisting by Sc, Y, Lu, and Lr." p11 and [1]