Which is the electron configuration for zinc?

Zinc has 30 electrons. Filling the orbitals in order gives 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰, which totals 30 electrons. Therefore, choice D, 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰, is the electron configuration for zinc.

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