Basic Chemistry (5th Edition)
Basic Chemistry (5th Edition)
5th Edition
ISBN: 9780134138046
Author: Karen C. Timberlake
Publisher: PEARSON
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Chapter 5, Problem 5.77FU

a.

Interpretation Introduction

Interpretation:

The atomic number of In should be determined.

Concept Introduction: The atomic number of an element is equal to the number of protons present in the nucleus of an atom which is unique for every element.

a.

Expert Solution
Check Mark

Answer to Problem 5.77FU

49

Explanation of Solution

For a neutral atom, the number of protons is always equal to the number of electrons. The number of protons present in the nucleus of an atom are fix for every element that is they are unique for every element and are said to be the atomic number of that element.

Since, the number of protons present in In is 49 so, the atomic number of In is 49.

b.

Interpretation Introduction

Interpretation:

The number of electrons in an atom of In should be determined.

Concept Introduction: The atomic number of an element is equal to the number of protons present in the nucleus of an atom which is unique for every element.

b.

Expert Solution
Check Mark

Answer to Problem 5.77FU

49

Explanation of Solution

For a neutral atom, the number of protons is always equal to the number of electrons. The number of protons present in the nucleus of an atom are fix for every element that is they are unique for every element and are said to be the atomic number of that element.

Since, the number of protons present in In is 49 so, the number of electrons present in In is 49.

c.

Interpretation Introduction

Interpretation:

The electronic configuration and abbreviated electron configuration of In should be determined.

Concept Introduction: The protons and neutrons of an atom are present in the nucleus of an atom whereas the electrons are always moving around the nucleus of an atom that is they possess kinetic energy. The lowest possible energy level of an electron in an atom is its ground state.

The electrons are arranged around the nucleus of an atom in an increasing order of energy levels and this description of orbitals of atom occupied by electrons is known as electronic configuration.

c.

Expert Solution
Check Mark

Answer to Problem 5.77FU

The electronic configuration of In is:

  1s22s22p63s23p63d104s24p64d105s25p1

The abbreviated electron configuration of In is:

  [Kr]4d105s25p1

Explanation of Solution

The electrons are arranged around the nucleus of an atom in an increasing order of energy levels and this description of orbitals of atom occupied by electrons is known as electronic configuration.

Electrons are distributed in the orbitals of the subshell. The specific region of space in which the movement of electrons is confined is said to be shells which are divided into subshells and are s-, p-, d-, and f-. Among these subshells, the electrons are grouped as orbitals.

The numbers of electrons that these subshells can hold are:

s-block - 2

p-block - 6

d-block - 10

f-block - 14

The increasing order of energy of shells, subshell is:

  Basic Chemistry (5th Edition), Chapter 5, Problem 5.77FU , additional homework tip  1

Since, the number of electrons for a neutral atom is equal to the atomic number of an atom. So,

Number of electrons in In is 49. So, the electronic configuration of In is:

  1s22s22p63s23p63d104s24p64d105s25p1

The abbreviated electron configuration of In is:

  [Kr]4d105s25p1

d.

Interpretation Introduction

Interpretation:

The group number and the Lewis symbol for In should be determined.

Concept Introduction: Structural representation of an element where dots are used to show electron position around the atoms, the dots represent the valence electrons that are those electrons which are present in the valence shell (outer most shell) are known as Lewis dot structure.

d.

Expert Solution
Check Mark

Answer to Problem 5.77FU

The group number for In is 3A (13)

Lewis symbol for In is:

  Basic Chemistry (5th Edition), Chapter 5, Problem 5.77FU , additional homework tip  2

Explanation of Solution

Since, the number of electrons for a neutral atom is equal to the atomic number of an atom. So,

Number of electrons in In is 49. So, the electronic configuration of In is:

  1s22s22p63s23p63d104s24p64d105s25p1

From the electronic configuration, the number of valence electrons of In is 3. So, the Lewis dot structure will be:

  Basic Chemistry (5th Edition), Chapter 5, Problem 5.77FU , additional homework tip  3

Since, the outer most orbital in which electron is present is p-orbital so, the group number will be:

Number of valence electron + 10

3 + 10 = 13

So, the group number for In is 3A (13).

e.

Interpretation Introduction

Interpretation:

The larger atom among indium and iodine should be determined.

Concept Introduction: The distance from the center of the nucleus of an atom to the outermost electron is said to be the atomic radius of an atom.

e.

Expert Solution
Check Mark

Answer to Problem 5.77FU

Indium is the larger atom.

Explanation of Solution

The given atoms belong to the same period that is period 5. Within a period, the outer electrons are in the same valence shell thus on moving from left to right in a period the number of protons increases in the nucleus of the atom resulting in increase in the effective nuclear charge due to decrease in shielding due to which the last shell gets pulled closer, that is atomic size of the atom decreases.

Since, In is group 13 element and I is group 17 element in period 5 so, In will have larger atom.

f.

Interpretation Introduction

Interpretation:

The atom having largest ionization energy among indium and iodine should be determined.

Concept Introduction: The energy which is required to remove an electron from the gaseous state of an atom or ion is said to be the ionization energy.

f.

Expert Solution
Check Mark

Answer to Problem 5.77FU

Iodine will have largest ionization energy.

Explanation of Solution

The given atoms belong to the same period that is period 5. Within a period, the outer electrons are in the same valence shell thus on moving from left to right in a period the number of protons increases in the nucleus of the atom resulting in increase in the effective nuclear charge due to decrease in shielding due to which the last shell gets pulled closer, that is atomic size of the atom decreases thus, making it harder to remove an electron from an atom so, on moving across the period, the ionization energy increases.

Since, In is group 13 element and I is group 17 element in period 5 so, I will have higher ionization energy.

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Chapter 5 Solutions

Basic Chemistry (5th Edition)

Ch. 5.1 - Prob. 5.11QAPCh. 5.1 - Prob. 5.12QAPCh. 5.1 - Place the following types of electromagnetic...Ch. 5.1 - Prob. 5.14QAPCh. 5.2 - What feature of an atomic spectrum indicates that...Ch. 5.2 - Prob. 5.16QAPCh. 5.2 - Prob. 5.17QAPCh. 5.2 - Prob. 5.18QAPCh. 5.2 - Prob. 5.19QAPCh. 5.2 - Identify the photon in each pair with the greater...Ch. 5.3 - Describe the shape of each of the following...Ch. 5.3 - Prob. 5.22QAPCh. 5.3 - Prob. 5.23QAPCh. 5.3 - Prob. 5.24QAPCh. 5.3 - Prob. 5.25QAPCh. 5.3 - Prob. 5.26QAPCh. 5.3 - Prob. 5.27QAPCh. 5.3 - Prob. 5.28QAPCh. 5.4 - Compare the terms electron configuration and...Ch. 5.4 - Prob. 5.30QAPCh. 5.4 - 5.31 Draw the orbital diagram for each of the...Ch. 5.4 - 5.32 Draw the orbital diagram for each of the...Ch. 5.4 - Prob. 5.33QAPCh. 5.4 - Prob. 5.34QAPCh. 5.4 - Prob. 5.35QAPCh. 5.4 - Prob. 5.36QAPCh. 5.4 - Prob. 5.37QAPCh. 5.4 - Prob. 5.38QAPCh. 5.4 - Prob. 5.39QAPCh. 5.4 - Prob. 5.40QAPCh. 5.5 - Use the sublevel blocks on the periodic table to...Ch. 5.5 - Prob. 5.42QAPCh. 5.5 - Prob. 5.43QAPCh. 5.5 - Prob. 5.44QAPCh. 5.5 - Prob. 5.45QAPCh. 5.5 - Prob. 5.46QAPCh. 5.5 - Use the periodic table to give the symbol of the...Ch. 5.5 - Prob. 5.48QAPCh. 5.5 - Prob. 5.49QAPCh. 5.5 - Use the periodic table to give the number of...Ch. 5.6 - What do the group numbers from 1A (1) to 8A (18)...Ch. 5.6 - Prob. 5.52QAPCh. 5.6 - Write the group number using both A/B and 1 to 18...Ch. 5.6 - Prob. 5.54QAPCh. 5.6 - Prob. 5.55QAPCh. 5.6 - Prob. 5.56QAPCh. 5.6 - Prob. 5.57QAPCh. 5.6 - Indicate the number of valence electrons in each...Ch. 5.6 - Write the group number and draw the Lewis symbol...Ch. 5.6 - Prob. 5.60QAPCh. 5.6 - Prob. 5.61QAPCh. 5.6 - Prob. 5.62QAPCh. 5.6 - Prob. 5.63QAPCh. 5.6 - Prob. 5.64QAPCh. 5.6 - Prob. 5.65QAPCh. 5.6 - Prob. 5.66QAPCh. 5.6 - Prob. 5.67QAPCh. 5.6 - Prob. 5.68QAPCh. 5.6 - Prob. 5.69QAPCh. 5.6 - Prob. 5.70QAPCh. 5.6 - Prob. 5.71QAPCh. 5.6 - Fill in each of the following blanks using higher...Ch. 5.6 - Prob. 5.73QAPCh. 5.6 - Prob. 5.74QAPCh. 5.6 - Prob. 5.75QAPCh. 5.6 - Prob. 5.76QAPCh. 5 - Prob. 5.77FUCh. 5 - Prob. 5.78FUCh. 5 - Prob. 5.79UTCCh. 5 - Prob. 5.80UTCCh. 5 - Prob. 5.81UTCCh. 5 - Prob. 5.82UTCCh. 5 - Prob. 5.83UTCCh. 5 - Prob. 5.84UTCCh. 5 - Prob. 5.85UTCCh. 5 - Prob. 5.86UTCCh. 5 - Prob. 5.87AQAPCh. 5 - Prob. 5.88AQAPCh. 5 - Prob. 5.89AQAPCh. 5 - Prob. 5.90AQAPCh. 5 - Prob. 5.91AQAPCh. 5 - Prob. 5.92AQAPCh. 5 - 5.93 a. What electron sublevel starts to fill...Ch. 5 - Prob. 5.94AQAPCh. 5 - Prob. 5.95AQAPCh. 5 - Prob. 5.96AQAPCh. 5 - Prob. 5.97AQAPCh. 5 - Prob. 5.98AQAPCh. 5 - Prob. 5.99AQAPCh. 5 - Prob. 5.100AQAPCh. 5 - Prob. 5.101AQAPCh. 5 - Prob. 5.102AQAPCh. 5 - Prob. 5.103AQAPCh. 5 - Why is the ionization energy of Br lower than that...Ch. 5 - Prob. 5.105AQAPCh. 5 - Prob. 5.106AQAPCh. 5 - Prob. 5.107AQAPCh. 5 - Prob. 5.108AQAPCh. 5 - Prob. 5.109AQAPCh. 5 - Prob. 5.110AQAPCh. 5 - Prob. 5.111AQAPCh. 5 - Prob. 5.112AQAPCh. 5 - Prob. 5.113CQCh. 5 - Prob. 5.114CQCh. 5 - Prob. 5.115CQCh. 5 - Prob. 5.116CQCh. 5 - Prob. 5.117CQCh. 5 - Prob. 5.118CQCh. 5 - Prob. 5.119CQCh. 5 - Prob. 5.120CQ
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