Which gas-phase atom or ion has the following ground state? [Ar] 3d7 4s2 | Atomic Structure

🧪 TheChemSolverUSNCO / General Chemistry

Atomic StructureMCQ

Question

Which gas-phase atom or ion has the following ground state?
[Ar] 3d₇ 4s₂

✓ Correct

Fe⁺

Cu²⁺

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