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Discipline: Chemistry

Question topic: Atomic Evolution

Source: Originais Teachy

Level of difficulty: Easy

(Originais Teachy 2023) - Question Easy of Chemistry

What was the first atomic model to propose a central nucleus inside the atom?
The Rutherford atomic model.
The Thomson atomic model.
The Dalton atomic model.
The Bohr atomic model.
The Maxwell atomic model.


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Question 1:


Throughout history, various scientists have proposed atomic models based on the evidence and knowledge of the time. We study the atomic models of Dalton, Thomson, Rutherford, and Bohr as the main examples of this evolution. Considering the trajectory to the development of the current model, answer: (a) Briefly describe the main characteristics of each of the mentioned atomic models; (b) Explain how experiments and scientific discoveries contributed to the refutation of one atomic model and the proposition of another, highlighting two examples; (c) Justify the importance of studying and understanding these atomic models for the understanding of the structure of matter and the chemical properties of elements.
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Question 2:


Throughout history, scientists have proposed different atomic models that describe the structure of matter. Among the main models, we can mention Dalton's Atomic Model, Thomson's Atomic Model, and the Rutherford-Bohr atom model. First, list and briefly explain the main concept of each of these models. Then, compare them, highlighting the main differences and evolutions between them, explaining the reason for this evolution. Finally, write a brief text describing the importance of studying these atomic models in understanding Chemistry and its practical applications.
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Question 3:


Source: UNESP
Question 4:


Scientists investigate the properties and characteristics of matter to understand more about the materials that make up the world around us. The classifications of body and object are also important in the study of these properties. Based on this information, do the following: a) Justify the differentiation between matter, body, and object, explaining how their characteristics are distinct. b) Explain how the general and specific properties of matter are important for understanding materials and their practical applications. c) List three specific properties of matter and give a practical example of how each one can be observed in everyday life.
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