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Moseley Kα characteristic energy

E_Kα = 54.36 keV

EKα=10.2 (Z−1)2 eV=13.6 (Z−1)2(1−14) eVE_{K\alpha}=10.2\,(Z-1)^2\,\mathrm{eV}=13.6\,(Z-1)^2\left(1-\tfrac{1}{4}\right)\,\mathrm{eV}

Kα x-ray energy from Moseley’s law: E ≈ 10.2 (Z−1)² eV.

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