Inter-relação entre química e física: uma proposta para o ensino do modelo atômico de Bohr através da espectroscopia estelar

Abstract

The teaching of Chemistry is considered challenging, despite presenting the possibility of using experimentation, dealing with atomic models may seem inconceivable, but the use of contextualization and interdisciplinarity allows a facilitation of the learning teaching process. Thus, the work presented stellar spectroscopy as a proposal for the teaching of atomic models, especially the Bohr Atomic Model. In order to achieve this proposal, the concepts about matter from the philosophical point of view were presented, as well as the idea of an atom exposed by Democritus and Leucipus. The use of history as the foundation of Bohr's Atomic Model, arose with the presentation in chronological order of the previous models and the problems that made them obsolete, since the presentation of Bohr's Atomic Model, was accompanied by the explanation of the spectral lines and how they serve as the basis for obtaining information in the stellar spectra. The methodology used in this research was action research, where a pedagogical action was first applied, verifying its effects and applying a questionnaire, responsible for collecting data that allowed to elaborate conclusions in this research. The questionnaire was divided into two axes, the first axis aimed to perceive the students's understanding of the theme addressed, the second axis, in turn, allowed the student to evaluate the pedagogical practice, allowing to understand the students's conceptions about practices of this nature. The use of methodologies based on contextualization and interdisciplinarity allowed us to conclude that Stellar Spectroscopy can explain Bohr's Atomic Model more effectively, assisting the scientific and critical training of students.