1:24 understand why the noble gases (Group 0) do not readily react The noble gases are inert (unreactive) because they have a full outer shell of electrons. Hydr0Gen2023-01-10T12:26:58+00:00Categories: (d) The Periodic Table, 1 Principles of chemistry, Edexcel iGCSE Chemistry|Tags: 1:24, Chemistry, Double, GCSE, GCSE_Chemistry_SpecPoint, SpecPoint, Topic: Ions, Topic: Metal Reactivity & Halogens, Topic: Metals (D), Topic: Simple Molecules & Covalent Bonding|