Chapter 25, Problem 64A

(a)

Interpretation Introduction

Interpretation:

Total numbers of protons and neutrons in $Co$ nuclei are to be determined.

Concept Interpretation:

The process of radioactive decay is how an unstable atomic nucleus loses energy through radiation. A substance that has unstable nuclei is regarded as radioactive.

Answer to Problem 64A

There are $27$ protons and $33$ neutrons.

Explanation of Solution

The mass number of an element is shown in superscript to the right of its symbol in the depiction of elements. The total number of protons and neutrons in the element is the mass number. On the other hand, the subscript indicates the total number of protons in the specified element.

Here, cobalt has 27 protons; to calculate its neutron count, simply deduct 27 from 60. You'll discover that the cobalt has 33 neutrons.

(b)

Interpretation Introduction

Interpretation:

Total numbers of protons and neutrons in $Pb$ nuclei.

Concept Interpretation:

The process of radioactive decay is how an unstable atomic nucleus loses energy through radiation. A substance that has unstable nuclei is regarded as radioactive.

Answer to Problem 64A

There is $82$ protons and $124$ neutrons.

Explanation of Solution

The mass number of an element is shown in superscript to the right of its symbol in the depiction of elements. The total number of protons and neutrons in the element is the mass number. On the other hand, the subscript indicates the total number of protons in the specified element.

Here, lead has $82$ protons; to calculate its neutron count, simply deduct $82$ from $206$ . You'll discover that cobalt has $124$ neutrons.

(c)

Interpretation Introduction

Interpretation:

Total numbers of protons and neutrons in $Th$ nuclei.

Concept Interpretation:

The process of radioactive decay is how an unstable atomic nucleus loses energy through radiation. A substance that has unstable nuclei is regarded as radioactive.

Answer to Problem 64A

There is $90$ protons and $143$ neutrons.

Explanation of Solution

The mass number of an element is shown in superscript to the right of its symbol in the depiction of elements. The total number of protons and neutrons in the element is the mass number. On the other hand, the subscript indicates the total number of protons in the specified element.

Here, $90$ protons; to calculate its neutron count, simply deduct 27 from 60. You'll discover that cobalt has $143$ neutrons.

(d)

Interpretation Introduction

Interpretation:

Total numbers of protons and neutrons in $H$ nuclei.

Concept Interpretation:

The process of radioactive decay is how an unstable atomic nucleus loses energy through radiation. A substance that has unstable nuclei is regarded as radioactive.

Answer to Problem 64A

There is $1$ protons and $2$ neutrons.

Explanation of Solution

The mass number of an element is shown in superscript to the right of its symbol in the depiction of elements. The total number of protons and neutrons in the element is the mass number. On the other hand, the subscript indicates the total number of protons in the specified element.

Here, Hydrogen has $1$ protons; to calculate its neutron count, simply deduct $1$ from $3$ . You'll discover that cobalt has $2$ neutrons.