Chapter 2, Problem 3QRT

Interpretation Introduction

Interpretation:

The number of protons and electrons in a neutral atom has to be calculated.

Concept Introduction:

Electrons:

Electrons are constituents of atom and it is the negatively charged subatomic particle.  It is known as the elementary particle because it cannot be broke down into smaller particles.

Charge of the electron $\text{=-1}{\text{.6×10}}^{\text{-19}}\text{ C}$.

Mass of the electron $\text{= 9}{\text{.1×10}}^{\text{-28}}\text{ g}$.

Protons:

Hydrogen atoms had the smallest mass to charge ratios, indicating that they must be the fundamental positively charged particles of atomic structure.  Such a particle is called a proton. 

Charge of the proton $\text{=1}{\text{.6×10}}^{\text{-19}}\text{ C}$.

Mass of the proton $\text{= 1}{\text{.67 × 10}}^{\text{-24}}\text{ g}$.