Question detail
What was the early idea about the structure of atoms before the discovery of the electron?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes
Question
- A. Atoms were tiny spheres that could not be divided.
- B. Atoms were made up of protons and neutrons only.
- C. Atoms were composed of electrons orbiting a nucleus.
- D. Atoms were clusters of molecules.
Answer
The correct option is Atoms were tiny spheres that could not be divided..
Explanation
The correct option is Atoms were tiny spheres that could not be divided.. Atoms were tiny spheres that could not be divided. is correct because it directly supports the approved learning objective to describe how discovery of the electron led to the plum pudding model. This is tested in the subtopic The development of the model of the atom within A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, so the reasoning must stay within AQA GCSE Chemistry 8462 Unit 4.1. The other options are weaker because they either confuse a nearby Chemistry concept, use the wrong subtopic context, or do not answer The development of the model of the atom precisely. Repair marker 9852de99 keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Misunderstanding the Plum Pudding Model
Students often think the plum pudding model describes electrons embedded in a solid mass rather than a diffuse positive charge with electrons scattered throughout.
Clarify that the plum pudding model suggests a positive 'pudding' with negatively charged electrons as 'plums' distributed within it.
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