Answer to Question #320342 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

Platinum: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d⁹ 6s¹;

Gold: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p⁶4f¹⁴5d¹⁰6s¹.

In this case, one electron jumps from the 6s orbital of the outer layer to the 5d orbital of the pre-outer layer.