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Questions and Answers
According to Thomson's atomic model, where is the positive charge located within the atom?
According to Thomson's atomic model, where is the positive charge located within the atom?
- Orbiting around the electrons in defined paths.
- Located in specific energy levels or shells.
- Distributed evenly throughout the atom in a sphere. (correct)
- Concentrated at the center of the atom in a nucleus.
What key characteristic of Thomson's atomic model allowed it to explain the electrical neutrality of atoms?
What key characteristic of Thomson's atomic model allowed it to explain the electrical neutrality of atoms?
- The arrangement of electrons in specific orbits.
- The presence of neutrons which balance the charge.
- The concentration of positive charge in a small nucleus.
- The equal magnitude of positive and negative charges. (correct)
In Thomson's atomic model, what are electrons compared to?
In Thomson's atomic model, what are electrons compared to?
- The red part of a watermelon
- The seeds in a watermelon (correct)
- The pudding in a Christmas pudding
- The dough of a Christmas pudding
Which statement best describes a limitation of Thomson's atomic model?
Which statement best describes a limitation of Thomson's atomic model?
What structural component was notably absent from Thomson's atomic model?
What structural component was notably absent from Thomson's atomic model?
Flashcards
Thomson's Atom Model
Thomson's Atom Model
Thomson's model depicts an atom as a sphere of positive charge with electrons embedded in it.
Positive Charge in Atom
Positive Charge in Atom
The positive charge in an atom is spread throughout, akin to the edible part of a watermelon.
Electrons in Atom
Electrons in Atom
Electrons are like currants in pudding or seeds in watermelon, embedded within the positive charge.
Electrical Neutrality
Electrical Neutrality
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Limitations of Thomson's Model
Limitations of Thomson's Model
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Study Notes
Thomson's Atomic Model
- Thomson's atomic model likened the atom to a Christmas pudding or a watermelon.
- Electrons, like currants (dry fruits) or seeds, are embedded within a sphere of positive charge (like the pudding or watermelon).
- Positive charge is evenly distributed throughout the atom.
- The model proposes that:
- An atom is a positively charged sphere with negatively charged electrons embedded within.
- The magnitudes of positive and negative charges are equal causing the atom to be electrically neutral.
- This model, while explaining the electrical neutrality of the atom, could not explain the results of some later experiments.
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