Answer to Question #320340 in Physical Chemistry for Aman

Question

(a) Write the electronic configuration of the elements platinum and gold. Also give

reasons in support of your answer.

Answer 1

Pt - [Xe]4f¹⁴5d⁹6s¹ (or expanded - 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s¹ 4f¹⁴ 5d⁹)

Au - [Xe] 4f¹⁴5d¹⁰6s¹ (or expanded - 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s¹ 4f¹⁴ 5d¹⁰)