Question detail
What evidence did the alpha particle scattering experiment provide?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Atoms and isotopes
Question
- A. Atoms are indivisible
- B. Atoms contain a small, dense nucleus
- C. Electrons are negatively charged
- D. Atoms are made of positive charge only
Answer
The correct answer is B: Atoms contain a small, dense nucleus.
Explanation
The correct answer is B: Atoms contain a small, dense nucleus. This supports the learning objective "Describe how the discovery of the electron led to the plum pudding model." in The development of the model of the atom because it uses the correct atomic and nuclear radiation relationship for Atoms and isotopes. The other options are less suitable because they do not match the required The development of the model of the atom idea: Atoms are indivisible; Electrons are negatively charged; Atoms are made of positive charge only.
Common mistake
Misunderstanding the Plum Pudding Model
Students often think the plum pudding model describes electrons as being randomly distributed throughout a solid mass of positive charge, rather than embedded within it.
Clarify that the plum pudding model depicts a ball of positive charge with negative electrons embedded in it, rather than a solid mass.
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