Whether the valence electrons are more, fewer or the same for first element compared to the second one in the following pair - Mg,Na has to be given. Concept Introduction: The electrons present in the outermost shell of the atom are known as valence electrons. Valence electrons are important because: The valence electrons decide the reactivity of an element. Except inner transition elements valence electrons are present in s or p subshells of elements. For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons. The group number is similar to number of valence electrons of an atom. The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

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Answer 1

Question

Chapter 4, Problem 4.9EP

(a)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, fewer or the same for first element compared to the second one in the following pair - Mg,Na has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(b)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair - P,As has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(c)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair-O,N has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(d)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair- Si,Cl has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

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Answer 2

Question

Chapter 4, Problem 4.9EP

(a)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, fewer or the same for first element compared to the second one in the following pair - Mg,Na has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(b)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair - P,As has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(c)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair-O,N has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(d)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair- Si,Cl has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

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Answer 3

Question

Chapter 4, Problem 4.9EP

(a)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, fewer or the same for first element compared to the second one in the following pair - Mg,Na has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(b)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair - P,As has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(c)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair-O,N has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(d)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair- Si,Cl has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

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Answer 4

Question

Chapter 4, Problem 4.9EP

(a)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, fewer or the same for first element compared to the second one in the following pair - Mg,Na has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(b)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair - P,As has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(c)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair-O,N has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(d)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair- Si,Cl has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

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Answer 5

Chapter 4, Problem 4.9EP

(a)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, fewer or the same for first element compared to the second one in the following pair - Mg,Na has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(b)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair - P,As has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(c)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair-O,N has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

(d)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair- Si,Cl has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

Answer 6

Chapter 4, Problem 4.9EP

(a)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, fewer or the same for first element compared to the second one in the following pair - Mg,Na has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

Answer 7

Chapter 4, Problem 4.9EP

(a)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, fewer or the same for first element compared to the second one in the following pair - Mg,Na has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

Answer 8

(b)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair - P,As has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

Answer 9

(b)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair - P,As has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

Answer 10

(c)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair-O,N has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

Answer 11

(c)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair-O,N has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

Answer 12

(d)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair- Si,Cl has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

Answer 13

(d)

Interpretation Introduction

Interpretation:

Whether the valence electrons are more, few or same for first element compared to the second one in the following pair- Si,Cl has to be given.

Concept Introduction:

The electrons present in the outermost shell of the atom are known as valence electrons.

Valence electrons are important because:

The valence electrons decide the reactivity of an element.

Except inner transition elements valence electrons are present in s or p subshells of elements.

For inner transition elements incompletely filled d or f subshells electrons are considered as valence electrons.

The group number is similar to number of valence electrons of an atom.

The ways in which electrons are arranged into various orbitals around the nuclei of atoms is called electronic configuration.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 4.1 - Prob. 1QQ Ch. 4.1 - Prob. 2QQ Ch. 4.1 - Prob. 3QQ Ch. 4.2 - How many valence electrons are present in an atom...Ch. 4.2 - Prob. 2QQ Ch. 4.2 - Prob. 3QQ Ch. 4.2 - Prob. 4QQ Ch. 4.2 - Which of the following elements would have the...Ch. 4.3 - Prob. 1QQ Ch. 4.3 - Prob. 2QQ

Solution Summary: The author explains that valence electrons decide the reactivity of an element, except inner transition elements, and for incompletely filled d or f subshells.

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