Chapter 11, Problem 23A

Interpretation Introduction

Interpretation: The given concept of an orbital shown is to be determined.

Concept introduction:

Orbital is the three-dimensional region in an atom where the electron finding probability is maximum.

Answer to Problem 23A

The orbitals are that space in an atom where the electron finding probability is highest.

Explanation of Solution

Orbital is described as the hydrogen electron probability map. As going away from the nucleus, the electron finding probability is decreased but never becomes exactly zero. As an orbital does not have a defined size, arbitrarily its size is defined as a sphere that contains 90% of the total electron probability.

Conclusion

The first Principal energy level of the hydrogen atom consisting of only one sub-level, which contains the 1s orbital, and the second principal energy level contain two sub-levels, one of which contains the 2s orbital and another one contains the 2p orbitals.