Question detail
Which property is primarily responsible for the similar chemical behavior of elements in a group?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
The periodic table
Question
- A. The number of outer-shell electrons
- B. The number of neutrons
- C. The arrangement of electrons in shells
- D. The total number of electrons
Answer
The correct option is The number of outer-shell electrons.
Explanation
The correct option is The number of outer-shell electrons. The number of outer-shell electrons is correct because it directly supports the approved learning objective to explain how outer-shell electrons give elements in the same group similar chemical properties. This is tested in the subtopic The periodic table within The periodic table, 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 periodic table precisely. Repair marker c631be8b keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Misunderstanding Outer-Shell Electrons
Students often think that all elements in the same group have identical properties, rather than similar properties due to having the same number of outer-shell electrons.
Emphasize that while elements in the same group have the same number of outer-shell electrons, this leads to similar but not identical chemical properties. Provide examples of elements within a group to illustrate this point.
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