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Noble gasshorthandis a way to simplify electron configurations by using the electron configuration of the previous noble gas as a starting point.To usenoblegas shorthand, you find the noble gas that comes before the element you're interested in and replace the correspondingelectronconfiguration with the symbol of that noble gas in brackets.Here's an example with chlorine (atomic number 17):Full electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁵Noble gas shorthand: [Ne] 3s² 3p⁵ (Neon has an atomic number of 10 and its electron configuration matches the first part of chlorine's configuration)More on Noble gasshorthand:brainly.com/question/29508904#SPJ11...