KnowraElectron shellLinked fromLinked fromThe 29 pages that link to Electron shell, each with the reason it gives.All 29Broader topic 3Related 22Narrower topic 4Octet ruleNarrower topic: The rule is framed in terms of filling an atom’s outer electron shell.Valence shellNarrower topic: The valence shell is the outermost occupied member of an atom’s electron shells.Helium atomNarrower topic: Both helium electrons occupy the first shell in its ground state.Period 4 elementNarrower topic: The fourth-period label corresponds to filling the fourth principal electron shell.