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CAIE IGCSE Chemistry 8.5.1 Group VIII noble gases as unreactive

Practise explaining why noble gases, sometimes called inert gases, are monatomic and unreactive by linking their behaviour to full outer electron shells.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • Choose statements matching noble or inert gases: full outer shells, monatomic particles and very low reactivity.
  • Explain unreactivity from electronic configuration and select argon or helium for an inert atmosphere.

8.5.1—Group VIII noble gases as unreactive question 1

[Maximum number: 1]

The symbols of the elements of Period 3 of the Periodic Table are shown.

Table for Question 8.5.1—Group VIII noble gases as unreactive question 1 — CAIE IGCSE Chemistry

Answer the following questions about these elements.
Each element may be used once, more than once or not at all.
Write the symbol of an element which:

does not form an oxide

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