Chapter 5, Problem 5.95SP

Interpretation Introduction

Interpretation:

The electron shielding in multi-electron atoms that gives the energy difference among 3s, 3p and 3d orbitals needs to be explained.

Concept introduction:

An atom consists of three sub-atomic particles; electrons, protons and neutrons. Here the protons and neutrons are placed in the nucleus at the center of atom whereas electrons are placed in certain energy levels around the nucleus.

The Bohr’s model purposed the concept of energy levels around the nucleus. It was the first most accepted atomic model. The quantum mechanical model is based on certain concepts like quantum numbers, Heisenberg uncertainty principle, etc.