Chapter 12, Problem 14CR

Interpretation Introduction

Interpretation:

The meaning for an atom to be in an excited state and to be in its ground state is to be stated. The procedure by which an excited atom returns to its ground state is to be stated. The meaning of a photon is to be stated. The relation between the wavelength of light and the energy of the photons being emitted by an atom is to be stated. The relation between the energy of the photons being emitted by an atom and the energy changes that takes place within the atom is to be stated.

Concept Introduction:

The distribution of the electrons that exists in the atomic orbital of an atom is collectively known as electronic configuration. The description of every electron in an orbital is given by the electronic configuration of that atom.

A photon always moves with a speed of light that is equal to $3\times {10}^8\text{m/s}$.