Chapter 2.2, Problem 2.2CE

(a)

Interpretation Introduction

Interpretation:

The approximate radius of the nucleus of an atom having radius $\text{100 m}$ has to be found.

Concept Introduction:

Atom:

It is the basic unit of matter.  They are made up of three particles protons, neutrons and electrons.

Nucleus:

The atomic nucleus is the small, dense region consisting of protons and neutrons at the centre of the atom.  The nucleus is surrounded by electron cloud.

(b)

Interpretation Introduction

Interpretation:

If an atom had a radius of $\text{100 m}$, it would approximately fit a football stadium.  The common spherical object which is about that size has to be calculated.