Question detail
Which statement best describes the trend in reactivity for Group 7 elements?
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. Reactivity decreases with atomic number
- B. Reactivity increases with atomic number
- C. Reactivity is independent of atomic number
- D. Reactivity is highest in the middle of the group
Answer
The correct option is Reactivity decreases with atomic number.
Explanation
The correct option is Reactivity decreases with atomic number. Reactivity decreases with atomic number is correct because it directly supports the approved learning objective to describe and explain why reactivity decreases down Group 7. This is tested in the subtopic Group 7 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 Group 7 precisely. Repair marker c24d444d keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Reactivity Misunderstanding
Students often think that reactivity increases down Group 7 instead of decreases.
Focus on the concept that as you move down Group 7, the outer electrons are further from the nucleus, making it harder for the atom to attract additional electrons, thus decreasing reactivity.
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