Vol 3 No 2 Suppl. 4 (2019)
Special Issue Article

Periodicity Trees in a Secondary Criterion of Periodic Classification: Its Implications for Science Teaching and Communication

Alfio Zambon
Universidad Nacional de la Patagonia San Juan Bosco, Argentina
Bio

Published 2019-12-06

Keywords

  • Periodicity tree,
  • chemical element,
  • periodic system,
  • teaching and communication in chemistry

How to Cite

Zambon, A. (2019). Periodicity Trees in a Secondary Criterion of Periodic Classification: Its Implications for Science Teaching and Communication. Substantia, 3(2), 101–114. https://doi.org/10.13128/Substantia-502

Abstract

In this work, I will present a proposal for introductory courses in chemistry. After the topics of atomic structure, chemical periodicity and chemical bonding, this proposal addresses the study of the periodic system based on triads, which has closed structures called periodicity trees as a secondary periodic criterion. This table was designed from a classical chemical perspective, with the purpose of integrating traditional topics and of supplying a conceptual basis for new ones, and, mainly, to privilege the chemical over the physical approach in the process of teaching-learning chemistry in initial courses.