Argon is widely used as an inert shielding gas in gas tungsten arc welding to prevent hot metal from reacting with components of the air.
Explain, by referring to its electronic structure, why argon is extremely unreactive.
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Markscheme
7.3 Group 0 Questions
44 exam-style questions on Edexcel GCSE Chemistry 7.3 Group 0, covering 7.3.1 The noble gases. Each one has a worked solution and a mark scheme showing where the marks go.