Question detail
What is a key characteristic of noble gases?
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. They have a full outer electron shell
- B. They are highly reactive
- C. They form positive ions
- D. They are metals
Answer
The correct option is They have a full outer electron shell.
Explanation
The correct option is They have a full outer electron shell. They have a full outer electron shell is correct because it directly supports the approved learning objective to identify Group 0 elements as noble gases. This is tested in the subtopic Group 0 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 0 precisely. Repair marker 484bd974 keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Misidentifying Noble Gases
Students often confuse noble gases with other groups, thinking they are reactive like alkali metals.
Remember that noble gases are in Group 0 and are characterized by their stable electron arrangements, making them unreactive.
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