Chapter 4, Problem 59A

How is an atom’s atomic number related to its number ofprotons? To its number of electrons?

Interpretation Introduction

Interpretation:

Relation of atomic number with number of protons and number of electrons needs to be explained.

Concept introduction:

All atoms are Neutral.

Answer to Problem 59A

$\begin{array}{l}\text{Atomic number = Number of Protons}\hfill \\ \text{Atomic Number = Number of Electrons}\hfill \end{array}$

Explanation of Solution

Number of protons present in an atom is also referred as Atomic number

$\therefore \text{Atomic number = Number of Protons}$

Since, all atoms are neutral there should be equal positive and negative charged particles

$\text{Number of Electrons = Number of Protons}$

$\therefore \text{Number of Electrons = Atomic number}$

Conclusion

$\text{Atomic number = Number of protons = Number of electrons}$