Chapter 11, Problem 27A

Interpretation Introduction

Interpretation:

The relation between the principle quantum number and distance of an electron from the nucleus needs to be explained.

Concept introduction:

The potential energy of the electron inversely varies with the distance of electron from the nucleus.

Answer to Problem 27A

The energy level where the electron founds is occurs at a particular distance from the nucleus of the atom is said to be principle energy level.

Explanation of Solution

The electron which is away from the nucleus possess higher potential energy while the electron which is close to the nucleus possess lowest potential energy. So, it conclude that the potential energy is inversely varies with the distance of electron from the nucleus. So, electron in closet orbit is tightly bound to the nucleus as compared to distinct one and the principle energy level is represented by “n”.

Conclusion

When the value of principle energy level is increase then the electrons spends longer distinct from the nucleus.