Chapter 1, Problem 1.1YT

Interpretation Introduction

Interpretation:

Orbitals designation and electron number in the second shell are to be determined.

Concept introduction:

Electronic configuration is the arrangement of electrons in an atomic orbital. This electronic configuration mainly depends on three principles. In Pauli’s exclusion principle, two electrons must have an opposite spin, and it does not contain the same set of quantum numbers. Aufbau’s principle tells that electrons must be filled first in the lower energy orbital. According to Hund’s rule, all electrons at the same energy must contain single electron in it, or it will be half filled.