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Questions and Answers
What did Dalton's atomic theory propose about the atom?
What did Dalton's atomic theory propose about the atom?
- Atoms contain only protons.
- Atoms can transform into other elements.
- Atoms can be divided into smaller particles.
- Atoms are indivisible and indestructible. (correct)
The discovery of electrons and protons supports Dalton's atomic theory.
The discovery of electrons and protons supports Dalton's atomic theory.
False (B)
Who was the first scientist to propose a model for the structure of an atom?
Who was the first scientist to propose a model for the structure of an atom?
J.J. Thomson
The two fundamental particles discovered within the atom are __________ and __________.
The two fundamental particles discovered within the atom are __________ and __________.
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Match the following concepts with their corresponding statements:
Match the following concepts with their corresponding statements:
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Study Notes
Atomic Theory Revisitation
- Dalton's atomic theory posited that atoms are indivisible and indestructible.
- The discovery of electrons and protons challenged the idea of indivisibility in atoms.
Role of Electrons and Protons
- Electrons and protons are fundamental particles found within atoms.
- Understanding the arrangement of these particles is essential for a comprehensive atomic model.
J.J. Thomson's Contribution
- J.J. Thomson was the first scientist to propose a model of atomic structure.
- His model marked a significant shift in understanding atomic composition and organization.
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Description
Explore the structure of an atom and the evolution of atomic theory following Dalton's initial concepts. This quiz covers the arrangement of electrons and protons and the various atomic models proposed by scientists like J.J. Thomson.
