Multiple Choice
Identify the element with the given electron orbital diagram.
23. Chemistry of the Nonmetals
The Electron Configuration Review
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Which electron configuration represents a violation of the Auf Bau Principle?
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The Aufbau Principle states that electrons fill atomic orbitals of the lowest available energy levels before occupying higher levels.
Examine each electron configuration image to determine if the orbitals are filled in the correct order according to the Aufbau Principle.
In the first image, the 2s orbital is filled before the 2p orbitals, which is correct according to the Aufbau Principle.
In the second image, the 2s orbital is filled, but the 2p orbitals are not filled in the correct order, as one of the 2p orbitals is skipped.
In the third and fourth images, the orbitals are filled in the correct order, with the 2s orbital filled before the 2p orbitals, and the 2p orbitals filled sequentially.
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