Symbol and atomic number of heaviest nonradioactive noble gas should be written. Concept introduction: The atomic number is the total number of protons present in the nucleus. Radioactive elements are those elements that break down into different elements by release of energy.All elements in the periodic table after atomic number 83 are radioactive. Noble gases are present in group 18 of the modern periodic table.Noble gases are those elements that are almost chemically inert means they don’t participate in the chemical reaction except xenon.

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Answer 1

Question

Chapter 2, Problem 2.44P

a)

Interpretation Introduction

Interpretation:Symbol and atomic number of heaviest nonradioactive noble gas should be written.

Concept introduction:The atomic number is the total number of protons present in the nucleus.

Radioactive elements are those elements that break down into different elements by release of energy.All elements in the periodic table after atomic number 83 are radioactive.

Noble gases are present in group 18 of the modern periodic table.Noble gases are those elements that are almost chemically inert means they don’t participate in the chemical reaction except xenon.

b)

Interpretation Introduction

Interpretation:Symbol and group number of the period 5 transition element whose atoms have the fewest protons should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

In the modern periodic table, group number 3 to group number 12 are called transition elements or d-block elements.These elements show different valency and they form coordination compounds.Many transition elements are colored.

c)

Interpretation Introduction

Interpretation:Symbol and atomic number of first metallic chalcogen should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 16 elements in the modern periodic table are called chalcogens.This group is also called oxygen family.

d)

Interpretation Introduction

Interpretation:Symbol and the number of protons of the period 4 alkali metal atom should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 1 elements in modern periodic table are known as alkali metals.Alkali metals lose their one valence electron to form ionic compounds. Due to this property, they are very reactive.

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Answer 2

Question

Chapter 2, Problem 2.44P

a)

Interpretation Introduction

Interpretation:Symbol and atomic number of heaviest nonradioactive noble gas should be written.

Concept introduction:The atomic number is the total number of protons present in the nucleus.

Radioactive elements are those elements that break down into different elements by release of energy.All elements in the periodic table after atomic number 83 are radioactive.

Noble gases are present in group 18 of the modern periodic table.Noble gases are those elements that are almost chemically inert means they don’t participate in the chemical reaction except xenon.

b)

Interpretation Introduction

Interpretation:Symbol and group number of the period 5 transition element whose atoms have the fewest protons should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

In the modern periodic table, group number 3 to group number 12 are called transition elements or d-block elements.These elements show different valency and they form coordination compounds.Many transition elements are colored.

c)

Interpretation Introduction

Interpretation:Symbol and atomic number of first metallic chalcogen should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 16 elements in the modern periodic table are called chalcogens.This group is also called oxygen family.

d)

Interpretation Introduction

Interpretation:Symbol and the number of protons of the period 4 alkali metal atom should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 1 elements in modern periodic table are known as alkali metals.Alkali metals lose their one valence electron to form ionic compounds. Due to this property, they are very reactive.

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Answer 3

Question

Chapter 2, Problem 2.44P

a)

Interpretation Introduction

Interpretation:Symbol and atomic number of heaviest nonradioactive noble gas should be written.

Concept introduction:The atomic number is the total number of protons present in the nucleus.

Radioactive elements are those elements that break down into different elements by release of energy.All elements in the periodic table after atomic number 83 are radioactive.

Noble gases are present in group 18 of the modern periodic table.Noble gases are those elements that are almost chemically inert means they don’t participate in the chemical reaction except xenon.

b)

Interpretation Introduction

Interpretation:Symbol and group number of the period 5 transition element whose atoms have the fewest protons should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

In the modern periodic table, group number 3 to group number 12 are called transition elements or d-block elements.These elements show different valency and they form coordination compounds.Many transition elements are colored.

c)

Interpretation Introduction

Interpretation:Symbol and atomic number of first metallic chalcogen should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 16 elements in the modern periodic table are called chalcogens.This group is also called oxygen family.

d)

Interpretation Introduction

Interpretation:Symbol and the number of protons of the period 4 alkali metal atom should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 1 elements in modern periodic table are known as alkali metals.Alkali metals lose their one valence electron to form ionic compounds. Due to this property, they are very reactive.

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Answer 4

Question

Chapter 2, Problem 2.44P

a)

Interpretation Introduction

Interpretation:Symbol and atomic number of heaviest nonradioactive noble gas should be written.

Concept introduction:The atomic number is the total number of protons present in the nucleus.

Radioactive elements are those elements that break down into different elements by release of energy.All elements in the periodic table after atomic number 83 are radioactive.

Noble gases are present in group 18 of the modern periodic table.Noble gases are those elements that are almost chemically inert means they don’t participate in the chemical reaction except xenon.

b)

Interpretation Introduction

Interpretation:Symbol and group number of the period 5 transition element whose atoms have the fewest protons should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

In the modern periodic table, group number 3 to group number 12 are called transition elements or d-block elements.These elements show different valency and they form coordination compounds.Many transition elements are colored.

c)

Interpretation Introduction

Interpretation:Symbol and atomic number of first metallic chalcogen should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 16 elements in the modern periodic table are called chalcogens.This group is also called oxygen family.

d)

Interpretation Introduction

Interpretation:Symbol and the number of protons of the period 4 alkali metal atom should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 1 elements in modern periodic table are known as alkali metals.Alkali metals lose their one valence electron to form ionic compounds. Due to this property, they are very reactive.

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Answer 5

Chapter 2, Problem 2.44P

a)

Interpretation Introduction

Interpretation:Symbol and atomic number of heaviest nonradioactive noble gas should be written.

Concept introduction:The atomic number is the total number of protons present in the nucleus.

Radioactive elements are those elements that break down into different elements by release of energy.All elements in the periodic table after atomic number 83 are radioactive.

Noble gases are present in group 18 of the modern periodic table.Noble gases are those elements that are almost chemically inert means they don’t participate in the chemical reaction except xenon.

b)

Interpretation Introduction

Interpretation:Symbol and group number of the period 5 transition element whose atoms have the fewest protons should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

In the modern periodic table, group number 3 to group number 12 are called transition elements or d-block elements.These elements show different valency and they form coordination compounds.Many transition elements are colored.

c)

Interpretation Introduction

Interpretation:Symbol and atomic number of first metallic chalcogen should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 16 elements in the modern periodic table are called chalcogens.This group is also called oxygen family.

d)

Interpretation Introduction

Interpretation:Symbol and the number of protons of the period 4 alkali metal atom should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 1 elements in modern periodic table are known as alkali metals.Alkali metals lose their one valence electron to form ionic compounds. Due to this property, they are very reactive.

Answer 6

Chapter 2, Problem 2.44P

a)

Interpretation Introduction

Interpretation:Symbol and atomic number of heaviest nonradioactive noble gas should be written.

Concept introduction:The atomic number is the total number of protons present in the nucleus.

Radioactive elements are those elements that break down into different elements by release of energy.All elements in the periodic table after atomic number 83 are radioactive.

Noble gases are present in group 18 of the modern periodic table.Noble gases are those elements that are almost chemically inert means they don’t participate in the chemical reaction except xenon.

Answer 7

Chapter 2, Problem 2.44P

a)

Interpretation Introduction

Interpretation:Symbol and atomic number of heaviest nonradioactive noble gas should be written.

Concept introduction:The atomic number is the total number of protons present in the nucleus.

Radioactive elements are those elements that break down into different elements by release of energy.All elements in the periodic table after atomic number 83 are radioactive.

Noble gases are present in group 18 of the modern periodic table.Noble gases are those elements that are almost chemically inert means they don’t participate in the chemical reaction except xenon.

Answer 8

b)

Interpretation Introduction

Interpretation:Symbol and group number of the period 5 transition element whose atoms have the fewest protons should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

In the modern periodic table, group number 3 to group number 12 are called transition elements or d-block elements.These elements show different valency and they form coordination compounds.Many transition elements are colored.

Answer 9

b)

Interpretation Introduction

Interpretation:Symbol and group number of the period 5 transition element whose atoms have the fewest protons should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

In the modern periodic table, group number 3 to group number 12 are called transition elements or d-block elements.These elements show different valency and they form coordination compounds.Many transition elements are colored.

Answer 10

c)

Interpretation Introduction

Interpretation:Symbol and atomic number of first metallic chalcogen should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 16 elements in the modern periodic table are called chalcogens.This group is also called oxygen family.

Answer 11

c)

Interpretation Introduction

Interpretation:Symbol and atomic number of first metallic chalcogen should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 16 elements in the modern periodic table are called chalcogens.This group is also called oxygen family.

Answer 12

d)

Interpretation Introduction

Interpretation:Symbol and the number of protons of the period 4 alkali metal atom should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 1 elements in modern periodic table are known as alkali metals.Alkali metals lose their one valence electron to form ionic compounds. Due to this property, they are very reactive.

Answer 13

d)

Interpretation Introduction

Interpretation:Symbol and the number of protons of the period 4 alkali metal atom should be determined.

Concept introduction:In a periodic table, elements that are present in columns are called groups. There is total of 18 groups in the modern periodic table and each group has a separate group number.

Group 1 elements in modern periodic table are known as alkali metals.Alkali metals lose their one valence electron to form ionic compounds. Due to this property, they are very reactive.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 2 - What is the key difference between an element and...Ch. 2 - List two differences between a compound and a...Ch. 2 - Which of the following are pure substances?...Ch. 2 - Classify each substance in Problem 2.3 as an...Ch. 2 - Each scene below represents a mixture. Describe...Ch. 2 - To which classes of matterâ€”element, compound,...Ch. 2 - Identify the mass law that each of the following...Ch. 2 - Prob. 2.8P Ch. 2 - (a) Does the percent by mass of each element in a...Ch. 2 - Prob. 2.10P

Solution Summary: The author explains how the atomic number of heaviest nonradioactive noble gas should be written.

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Chapter 2 Solutions