The periodicity trees and the elements of block d of the standard periodic table
Keywords:
triads of atomic number, periodicity trees, block dAbstract
The periodic system based on triads of atomic number, proposes a representation where the main criterion is the increasing order of atomic numbers, and the secondary criterion is established through the formation of triads of atomic numbers, without appealing to electronic configurations or any quantum consideration. Although the proposed table is based on triads of atomic numbers, the fundamental relationship in the architecture of the table is given by the “periodicity trees”: symmetric systems of interrelated elements by means of the triads, which contain 20 elements each and they take the place of traditional groups. In this work, we will develop the “periodicity trees” proposal and apply it to current discussions in the periodic table, particularly to the elements that make up block d of the standard periodic table.
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