Question detail
Which of the following best describes the arrangement of elements in the periodic table?
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. By atomic number
- B. By atomic weight
- C. By chemical reactivity
- D. By color
Answer
The correct option is By atomic number.
Explanation
The correct option is By atomic number. By atomic number is correct because it directly supports the approved learning objective to explain that columns in the periodic table are called groups. 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 d1f92e5b keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Misunderstanding Groups
Students often confuse groups with periods, thinking that both refer to the same arrangement in the periodic table.
Remember that groups are the vertical columns in the periodic table, while periods are the horizontal rows. Focus on the vertical arrangement when discussing groups.
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