Aufbau Principle - Characteristics, Exce…
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Exceptions of the Aufbau Principle Chromium: Its electronic configuration is [Ar]4s13d5 and not [Ar]4s23d4 as the Aufbau principle suggests. Copper: Its electronic configuration corresponds to [Ar]4s13d10. Half-filled subshells: They have lower electron-electron repulsions in the orbitals, increasing stability. Transition metals, Lanthanides, and Actinides: They have electron configurations that disagree with the Aufbau principle. In transition metals, the d subshell takes an electron from the s subshell. The electronic configuration of chromium is [Ar]4s13d5 and not [Ar]4s23d4 (as the Aufbau principle suggests). ...
Chromium: Its electronic configuration is [Ar]4s13d5 and not [Ar]4s23d4 as the Aufbau principle suggests.
Copper: Its electronic configuration corresponds to [Ar]4s13d10.
Half-filled subshells: They have lower electron-electron repulsions in the orbitals, increasing stability.
Transition metals, Lanthanides, and Actinides: They have electron configurations that disagree with the Aufbau principle. In transition metals, the d subshell takes an electron from the s subshell.
The electronic configuration of chromium is [Ar]4s13d5 and not [Ar]4s23d4 (as the Aufbau principle suggests). ...
DA: 31 PA: 22 MOZ Rank: 24