Question detail
Which of the following statements is true about the reactivity of sodium compared to lithium?
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. Sodium is more reactive than lithium
- B. Sodium is less reactive than lithium
- C. Sodium and lithium have the same reactivity
- D. Sodium is not a Group 1 element
Answer
The correct option is Sodium is more reactive than lithium.
Explanation
The correct option is Sodium is more reactive than lithium. Sodium is more reactive than lithium is correct because it directly supports the approved learning objective to describe and explain why reactivity increases down Group 1. This is tested in the subtopic Group 1 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 1 precisely. Repair marker 135b0922 keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Reactivity Misunderstanding
Students often believe that reactivity increases down Group 1 because the elements become heavier.
Reactivity increases down Group 1 due to the increasing distance of the outer electron from the nucleus, which makes it easier to lose that electron.
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