What is the correct electron configuration for Iron (Fe)?A[Ar] 4s23d3B1s22s22p3C[Ar] 4s23d6D1s22s22p2
Question
What is the correct electron configuration for Iron (Fe)?A[Ar] 4s23d3B1s22s22p3C[Ar] 4s23d6D1s22s22p2
Solution
The correct electron configuration for Iron (Fe) is C[Ar] 4s23d6. This is because Iron has 26 electrons. The first 18 electrons will fill up the 1s, 2s, 2p, 3s, 3p, and 4s orbitals, as well as the 3d orbital up to 3d6. The remaining 8 electrons will fill up the 4s orbital and the 3d orbital up to 3d6.
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