Chapter 12, Problem 83E

Interpretation Introduction

Interpretation:Elements that show different ground-state electron configurations should be listed.

Concept introduction: Aufbau rule states that electrons must be filled in lowest energy levels first. For instance, electrons first occupy shells that are lower in energies illustrated as follows:

  

Pauli’s exclusion principle suggests that there can be no more than 2 electrons in same orbital.

Hund’s rule of maximum multiplicity states that electrons cannot be allowed to pair until each orbital gets singly filled with one electron. These 3 principles form basis for determination of electronic configuration.