(a) Interpretation: Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the higher atomic number is to be identified. Concept Introduction: The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

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Answer 1

Question

Chapter 2.8, Problem 2.17PP

Interpretation Introduction

(a)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the higher atomic number is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Interpretation Introduction

(b)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the larger ionization energy is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Interpretation Introduction

(c)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which gives up electron easily, is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

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Boron, atomic number 5, occurs naturally as two isotopes, 10B and 11B, with natural abundances of 19.9% and 80.1%, respectively. (a) In what ways do the two isotopes differ from each other? Does the electronic configuration of 10B differ from that of 11B? (b) Draw the orbital diagram for an atom of 11B. Which electrons are the valence electrons? (c) Indicate three ways in which the 1s electrons in boron differ from its 2s electrons. (d) Elemental boron reacts with fluorine to form BF3, a gas. Write a balanced chemical equation for the reaction of solid boron with fluorine gas. (e) ΔHf° for BF3(g) is -1135.6 kj/mol. Calculate the standard enthalpy change in the reaction of boron with fluorine. (f) Will the mass percentage of F be the same in 10BF3 and 11BF3? If not, why is that the case?

(a) Identify the number of electrons in the ground-state outer shell of atomic oxygen (atomic number 8).(b) How many electrons are in the ground-state outer shell of fluorine?

Boron, atomic number 5, occurs naturally as two isotopes, 10B and 11B, with natural abundances of 19.9% and 80.1%, respectively.(a) In what ways do the two isotopes differ from each other? Does the electronic configuration of 10B differ from that of 11B? (b) Drawthe orbital diagram for an atom of 11B. Which electrons are the valence electrons? (c) Indicate three ways in which the 1s electrons inboron differ from its 2s electrons. (d) Elemental boron reacts with fluorine to form BF3, a gas. Write a balanced chemical equation forthe reaction of solid boron with fluorine gas. (e) ΔHf° for BF31g2 is -1135.6 kJ>mol. Calculate the standard enthalpy change in thereaction of boron with fluorine. (f) Will the mass percentage of F be the same in 10BF3 and 11BF3? If not, why is that the case?

Answer 2

Question

Chapter 2.8, Problem 2.17PP

Interpretation Introduction

(a)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the higher atomic number is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Interpretation Introduction

(b)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the larger ionization energy is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Interpretation Introduction

(c)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which gives up electron easily, is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Expert Solution & Answer

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Answer 3

Question

Chapter 2.8, Problem 2.17PP

Interpretation Introduction

(a)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the higher atomic number is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Interpretation Introduction

(b)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the larger ionization energy is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Interpretation Introduction

(c)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which gives up electron easily, is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Expert Solution & Answer

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Answer 4

Question

Chapter 2.8, Problem 2.17PP

Interpretation Introduction

(a)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the higher atomic number is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Interpretation Introduction

(b)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the larger ionization energy is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Interpretation Introduction

(c)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which gives up electron easily, is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Expert Solution & Answer

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Answer 5

Chapter 2.8, Problem 2.17PP

Interpretation Introduction

(a)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the higher atomic number is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Interpretation Introduction

(b)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the larger ionization energy is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Interpretation Introduction

(c)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which gives up electron easily, is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Answer 6

Chapter 2.8, Problem 2.17PP

Interpretation Introduction

(a)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the higher atomic number is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Answer 7

Chapter 2.8, Problem 2.17PP

Interpretation Introduction

(a)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the higher atomic number is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Answer 8

Interpretation Introduction

(b)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the larger ionization energy is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Answer 9

Interpretation Introduction

(b)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which has the larger ionization energy is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Answer 10

Interpretation Introduction

(c)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which gives up electron easily, is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Answer 11

Interpretation Introduction

(c)

Interpretation:

Considering the spheres A and B as the atoms in the same period in the periodic table, the one which gives up electron easily, is to be identified.

Concept Introduction:

The elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number. This makes the study of these compounds systematic as elements with same chemical properties fall in the same group.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 2.1 - Give the symbol for each element. a. calcium, a...Ch. 2.1 - Give the name corresponding to each element...Ch. 2.1 - Locate each element in the periodic table and...Ch. 2.1 - Prob. 2.4P Ch. 2.1 - Identify the elements used ineach example of...Ch. 2.1 - Identify the elements in each chemical formula,...Ch. 2.1 - Prob. 2.6P Ch. 2.1 - Prob. 2.2PP Ch. 2.2 - Prob. 2.3PP Ch. 2.2 - Prob. 2.4PP

Solution Summary: The author analyzes how the elements are organized in periodic table on the basis of their electronic configuration. They are put in different groups and periods according to their atomic number.

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Chapter 2 Solutions