Chapter 2.2, Problem 2.11P

(a)

Interpretation Introduction

Interpretation:

The number of protons and the number of neutrons for the atom in the given figure has to be given.

The given figure is,

Figure 1

Concept Introduction:

Protons:

A proton is one of three main particles that make up the atom.  Protons are a tiny, dense region at the center of the atom.  Protons have a positive electrical charge of $+1$ and a mass of 1 atomic mass which is $\text{1}{\text{.62×10}}^{\text{-27}}$ kilograms.

Neutrons:

Atoms of all elements except for most atoms of hydrogen have neutrons in their nucleus. Unlike protons and electrons, which are electrically charged, neutrons have no charge they are electrically neutral.

(b)

Interpretation Introduction

Interpretation:

The atomic number and the mass number of the given atom have to be given.

The given figure is,

Figure 1

Concept introduction;

Atomic number (Z):

Atomic number of an element is the number of protons found in the nucleus of every atom of that element.

Mass number (A):

Mass number of an element is defined as the total number of protons and neutrons in an atom.

(c)

Interpretation Introduction

Interpretation:

The element for the given atom has to be identified.

The given figure is,

Figure 1