Contextualization

Atomic evolution is a fundamental concept for the true understanding of the Universe we live in. This very Universe, in its formation, went through several processes that shaped the constitution of atoms as we know them today. The study of atomic models and the evolution in scientific thinking about them allows us a better understanding not only of physics and chemistry, but of the scientific process itself, and how far human curiosity and determination can take us.

From Dalton's atomic model, which proposed the existence of indivisible atoms, passing through Thomson's model, which proposed the existence of subatomic particles, to Bohr's atomic model, which introduced electronic orbits, and finally reaching quantum mechanics and the current atomic model, the evolution of human understanding about the atom is a fascinating story of discovery, innovation, and adaptation of our understanding in the face of new evidence.

It is important to remember that the study of atoms and their structure is not just a theoretical issue. Many of the technological innovations we have today, from nuclear energy to modern electronics, are possible thanks to our understanding of atomic structure. Nuclear medicine, for example, uses knowledge about atoms to create more effective treatments for various diseases. Therefore, understanding atomic evolution has a direct application in our lives and is fundamental for the advancement of science and technology.

We recommend the following resources to base and deepen your knowledge on the subject:

1. Book: "From Bohr's Atom to the Quantum Model - A History of Quantum Physics" by Mohammad Hassan Asghar
2. Website: Atomic Model (Brazil School)
3. Video: The history of the atom (Manual do Mundo Channel)

Practical Activity

Activity Title: "The Journey of Atoms: A Tour through Atomic Evolution"

Project Objective

In this project, students should create an interactive map or an infographic that demonstrates the evolution of atomic models over time, from Dalton's initial idea, through Thomson, Rutherford, Bohr, and reaching the quantum model.

Detailed Project Description

Students should research in-depth each of the models, understand their key concepts, which problems each model solved, and which questions or dilemmas it brought. The final product should be an interactive map (can be digital, physical, or even a physical or digital infographic) that allows the viewer to understand the evolution of scientific thinking about atoms.

Required Materials

• Science books
• Internet access for research
• Stationery materials (if making the map/infographic entirely physical)
• Image/video editing program (if making the digital map/infographic)
• Presentation program (such as PowerPoint, Google Slides, or Prezi) for the final presentation

Detailed Step-by-Step for Activity Execution

1. Research and study each of the atomic models.
2. Sketch how you imagine your interactive map/infographic will be.
3. Gather all necessary information about each atomic model.
4. Start creating your map/infographic, whether physical or digital.
5. Perform a final review to ensure all information is correct.
6. Create a presentation to explain your map/infographic to the class.

This is a group project for 3 to 5 students, with an estimated duration of approximately 12 hours per group member.

Project Deliverables

Students should deliver the completed interactive map or infographic, as well as a written report on the project containing the following elements:

1. Introduction: Should contextualize atomic evolution, its relevance and real-world application, as well as the objective of this project.
2. Development: Should explain the theory behind atomic evolution, detail the activity carried out, indicate the methodology used, and finally present and discuss the results obtained.
3. Conclusion: Should consist of a reflection on the process of creating the map/infographic, the challenges, the learnings obtained, and the conclusions drawn about atomic evolution.
4. Bibliography: Indication of the sources the students relied on for research and for the creation of the map/infographic.

The written report is an opportunity for students to demonstrate their understanding of atomic evolution and their learning process. It should be clear, concise, and contain all relevant information about the topic and the project carried out.