Question detail
What does an electron-shell diagram represent for an atom?
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. The distribution of electrons in energy levels
- B. The arrangement of protons in the nucleus
- C. The mass number of the atom
- D. The chemical properties of the element
Answer
The correct option is The distribution of electrons in energy levels.
Explanation
The correct option is The distribution of electrons in energy levels. The distribution of electrons in energy levels is correct because it directly supports the approved learning objective to interpret electron-shell diagrams for atoms of the first 20 elements. This is tested in the subtopic Electronic structure 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 Electronic structure precisely. Repair marker 8d13a140 keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Misinterpreting Electron Shells
Students often confuse the number of electrons in each shell with the total number of electrons in the atom.
To fix this, remember that each shell can hold a specific number of electrons: the first shell holds 2, the second holds 8, and so on. Always check the electron configuration to ensure you are interpreting the diagram correctly. Keep the correction anchored to Electronic structure and avoid mixing it with nearby Unit 4.1 ideas.
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