85

At

Astatine

Xe 4f¹⁴ 5d¹⁰ 6s² 6p⁵
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d¹⁰ 6s² 6p⁵

Astatine Electron Configuration