Chapter 11.2, Problem 5RQ

Interpretation Introduction

Interpretation: The differences between the Bohr model and wave mechanical model of the atom are to be explained.

Concept Introduction:The basic difference in the wave model and the Bohr’s model are the consideration of the electron in different perspectives.

Answer to Problem 5RQ

In the Bohr model, the particle nature of the electron is the primary basis of the model while in the quantum mechanical model, the electrons wave nature is considered in the form of a mathematical equation. Only one quantum number is enough for determining the position of an atom in Bohr model but in wave mechanical model three quantum numbers are required to only predict the possible area where a particular electron may be present at a given time. The Bohr model does not go along with Heisenberg principle because it determines both the position and velocity of a particle at any given time which is not possible but the wave model satisfies the postulates of the principle.

Explanation of Solution

The wave mechanical model is the more widely accepted model than the Bohr model because it satisfies the Heisenberg principle and it also justifies the line spectra of multi electronic systems which the Bohr model is unable to do.

The Bohr model is a one-dimensional model that can describe the electron using a single quantum number but in wave model, the electrons are considered to occupy three dimensional space and three quantum numbers are required to show the distribution of electrons in the atom