We’re being asked to determine the correct noble gas electron configuration of copper(Cu).
You can determine the ground-state electron configuration of copper(Cu) by locating the position Cu in the periodic table.
Ground-state means that the element is in its lowest energy form (not in excited state). Neutral barium means it has no charge, meaning no electrons are removed or added in the atom.
Cu is in Period 4 and d-block
Give the ground-state electron configuration for copper(Cu) using noble-gas shorthand?
Express your answer in condensed form as a series of orbitals.
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