Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 2, Problem 107AE

(a)

Interpretation Introduction

Interpretation:

From the given data, the corresponding elements and the number of each nucleons has to be found.

Concept introduction:

The smallest constituent of matter is atom.  Each atom consist of subatomic particles called electrons, protons and neutrons.  Protons and neutrons are present in the nucleus and called nucleons.  A group of atoms having same number of protons are called as an element.

The atomic symbol for an element can be represented as ZAX

Where X represents the symbol of the element, Z represents the atomic number of the element and A represents the atomic mass or mass number of the element.

(a)

Expert Solution
Check Mark

Answer to Problem 107AE

The given element is found to be phosphorus

Number of protons =15

Number of neutrons =16

Explanation of Solution

Given, 1531X

Atomic number, Z=15

Mass number, A=31

The atomic number of the element is equal to the number of protons.

The mass number  is equal to the sum of the number of protons and neutrons.

A=p+n

Hence, the number of neutrons, n=31-15=16

The element with atomic number 15 was found to be phosphorus

1531P

(b)

Interpretation Introduction

Interpretation:

From the given data, the corresponding elements and the number of each nucleons has to be found.

Concept introduction:

The smallest constituent of matter is atom.  Each atom consist of subatomic particles called electrons, protons and neutrons.  Protons and neutrons are present in the nucleus and called nucleons.  A group of atoms having same number of protons are called as an element.

The atomic symbol for an element can be represented as ZAX

Where X represents the symbol of the element, Z represents the atomic number of the element and A represents the atomic mass or mass number of the element.

(b)

Expert Solution
Check Mark

Answer to Problem 107AE

The given element is found to be potassium

Number of protons =19

Number of neutrons =20

Explanation of Solution

Given, 1939X

Atomic number, Z=19

Mass number, A=39

The atomic number of the element is equal to the number of protons.

The mass number  is equal to the sum of the number of protons and neutrons.

A=p+n

Hence, the number of neutrons, n=39-19=20

The element with atomic number 19 was found to be potassium

1939K

(c)

Interpretation Introduction

Interpretation:

From the given data, the corresponding elements and the number of each nucleons has to be found.

Concept introduction:

The smallest constituent of matter is atom.  Each atom consist of subatomic particles called electrons, protons and neutrons.  Protons and neutrons are present in the nucleus and called nucleons.  A group of atoms having same number of protons are called as an element.

The atomic symbol for an element can be represented as ZAX

Where X represents the symbol of the element, Z represents the atomic number of the element and A represents the atomic mass or mass number of the element.

(c)

Expert Solution
Check Mark

Answer to Problem 107AE

The given element is found to be iodine

Number of protons =53

Number of neutrons =74

Explanation of Solution

Given, 53127X

Atomic number, Z=53

Mass number, A=127

The atomic number of the element is equal to the number of protons.

The mass number  is equal to the sum of the number of protons and neutrons.

A=p+n

Hence, the number of neutrons, n=127-53=74

The element with atomic number 15 was found to be iodine

12753I

(d)

Interpretation Introduction

Interpretation:

From the given data, the corresponding elements and the number of each nucleons has to be found.

Concept introduction:

The smallest constituent of matter is atom.  Each atom consist of subatomic particles called electrons, protons and neutrons.  Protons and neutrons are present in the nucleus and called nucleons.  A group of atoms having same number of protons are called as an element.

The atomic symbol for an element can be represented as ZAX

Where X represents the symbol of the element, Z represents the atomic number of the element and A represents the atomic mass or mass number of the element.

(d)

Expert Solution
Check Mark

Answer to Problem 107AE

The given element is found to be ytterbium

Number of protons =70

Number of neutrons =103

Explanation of Solution

Given, 70173X

Atomic number, Z=70

Mass number, A=173

The atomic number of the element is equal to the number of protons.

The mass number  is equal to the sum of the number of protons and neutrons.

A=p+n

Hence, the number of neutrons, n=17370=103

The element with atomic number 70 was found to be ytterbium

70173Yb

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