Chapter 4, Problem 59A

Interpretation Introduction

Interpretation : The size and density of an atom are to be compared with its nucleus.

Concept Introduction : The smallest component of an element that maintains its identity during a chemical reaction is called an atom. The nucleus is tiny consisting of protons and neutrons.

Answer to Problem 59A

The size of an atom is larger than the nucleus while the density of the nucleus will be large than the atom.

Explanation of Solution

The atom is the smallest particle of an element maintaining its identity during a chemical reaction.

The nucleus consists of protons and neutrons which have a positive charge. The electrons revolve around the nucleus.

The size and density of the nucleus are very small when compared with the atom.

The size of an atom is larger than the nucleus due to the presence of electrons outside the nucleus.

As the mass increases, the density increases since they are directly proportional.

But the density of the nucleus is larger due to the presence of protons and neutrons.