The general trend in radii of rare earth metals should be reported and the reason behind the trend should be explained. Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4 f orbitals. 4 f electrons poorly shield each other from increased charge of nucleus so that Z eff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

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Answer 1

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Chapter 5, Problem 52AP

a)

Interpretation Introduction

Interpretation: The general trend in radii of rare earth metals should be reported and the reason behind the trend should be explained.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

b)

Interpretation Introduction

Interpretation: The two elements that are exception to the general trend of radii of rare earth metals should be reported.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

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Answer 2

Question

Chapter 5, Problem 52AP

a)

Interpretation Introduction

Interpretation: The general trend in radii of rare earth metals should be reported and the reason behind the trend should be explained.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

b)

Interpretation Introduction

Interpretation: The two elements that are exception to the general trend of radii of rare earth metals should be reported.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

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Answer 3

Question

Chapter 5, Problem 52AP

a)

Interpretation Introduction

Interpretation: The general trend in radii of rare earth metals should be reported and the reason behind the trend should be explained.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

b)

Interpretation Introduction

Interpretation: The two elements that are exception to the general trend of radii of rare earth metals should be reported.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

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Answer 4

Question

Chapter 5, Problem 52AP

a)

Interpretation Introduction

Interpretation: The general trend in radii of rare earth metals should be reported and the reason behind the trend should be explained.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

b)

Interpretation Introduction

Interpretation: The two elements that are exception to the general trend of radii of rare earth metals should be reported.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

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Answer 5

Chapter 5, Problem 52AP

a)

Interpretation Introduction

Interpretation: The general trend in radii of rare earth metals should be reported and the reason behind the trend should be explained.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

b)

Interpretation Introduction

Interpretation: The two elements that are exception to the general trend of radii of rare earth metals should be reported.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

Answer 6

Chapter 5, Problem 52AP

a)

Interpretation Introduction

Interpretation: The general trend in radii of rare earth metals should be reported and the reason behind the trend should be explained.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

Answer 7

Chapter 5, Problem 52AP

a)

Interpretation Introduction

Interpretation: The general trend in radii of rare earth metals should be reported and the reason behind the trend should be explained.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

Answer 8

b)

Interpretation Introduction

Interpretation: The two elements that are exception to the general trend of radii of rare earth metals should be reported.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

Answer 9

b)

Interpretation Introduction

Interpretation: The two elements that are exception to the general trend of radii of rare earth metals should be reported.

Concept introduction: Lanthanoid contraction is the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum( Z equal to57) through lutetium( Z equal to71). For each atom across period the nuclear charge increases with unit positive charge, accompanied by increase in count of electrons present in 4forbitals. 4f electrons poorly shield each other from increased charge of nucleus so that Zeff that attracts each electron steadily increases through rare earth elements, which results in successive decrease of atomic and ionic radii.

Answer 10

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Answer 13

Ch. 5 - Which of the following combinations of quantum...Ch. 5 - Which of the following combinations of quantum...Ch. 5 - Label the orbitals described by each of the...Ch. 5 - Label the orbitals described by each of the...Ch. 5 - Estimate the probability of finding an electron...Ch. 5 - Using Table 5.2, write down the mathematical...Ch. 5 - How many radial nodes and how many angular nodes...Ch. 5 - How many radial nodes and how many angular nodes...Ch. 5 - Use the mathematical expression for the 2pz wave...Ch. 5 - (a) Use the radial wave function for the 3p...

Solution Summary: The author explains that the general trend in radii of rare earth metals should be reported and the reason behind the trend.

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