Chapter 5, Problem 106A

Interpretation Introduction

Interpretation:

The change in an atom when it absorbs a quantum of energy needs to be explained according to the quantum mechanical model.

Concept introduction:

The quantum mechanical model is proposed by Erwin Schrödinger in which an atom is treated as matter waves. The probability of wave function is represented by the square of the wave function. This model uses shapes of orbitals which are complex and the space where probability of presence of an electron is high. So, the quantum mechanical model is not based on certainty but it is based on the probability.

Explanation of Solution

The quantum mechanical model of atom treats the electrons as matter waves. This model uses complex shapes of the orbitals and space where probability of finding an electron has maximum value. When a quantum of energy is absorbed by an electron, it moves to a higher energy level which is stored there until the energy is released. When the electron returns back to the lower energy level, it becomes more stable.