Question detail
What does the plum pudding model of the atom propose?
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 spheres.
- B. Atoms consist of a ball of positive charge with negative electrons embedded in it.
- C. Atoms have a small, dense nucleus surrounded by electrons.
- D. Atoms are made up of protons, neutrons, and electrons only.
Answer
The correct answer is B: Atoms consist of a ball of positive charge with negative electrons embedded in it..
Explanation
The correct answer is B: Atoms consist of a ball of positive charge with negative electrons embedded in it.. This supports the learning objective "Use evidence to compare the plum pudding model, nuclear model and modern atomic 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 spheres.; Atoms have a small, dense nucleus surrounded by electrons.; Atoms are made up of protons, neutrons, and electrons only..
Common mistake
Confusing Atomic Models
Students often confuse the characteristics of the plum pudding model with those of the nuclear model, mistakenly attributing the presence of electrons in the nucleus.
To fix this, students should focus on the key features of each model: the plum pudding model describes a positively charged sphere with electrons embedded, while the nuclear model has a small, dense nucleus containing protons and neutrons, with electrons orbiting around it.
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