Question detail
What evidence did Chadwick provide in the development of atomic models?
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. Evidence for the existence of neutrons
- B. Evidence for the existence of protons
- C. Evidence for the existence of electrons
- D. Evidence for the existence of ions
Answer
The correct option is Evidence for the existence of neutrons.
Explanation
The correct option is Evidence for the existence of neutrons. Evidence for the existence of neutrons is correct because it directly supports the approved learning objective to explain how the history of atomic models shows scientific methods and theories developing over time. 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 f9eaa1fd keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Misunderstanding Scientific Progress
Students often think that scientific models are completely replaced rather than improved upon over time.
Emphasize that scientific models evolve as new evidence is discovered, building on previous ideas rather than completely discarding them.
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