Chapter 11, Problem 65A

(a)

Interpretation Introduction

Interpretation:

The general valence configuration of N needs to be given.

Concept Introduction: The general valence configuration of a given element is the arrangement of electrons in the increasing order of energy in the sub-shells of on atom.

Answer to Problem 65A

The general valence configuration of Nitrogen is, $N=1s^{2}2s^{{}^2}2p^3$

Explanation of Solution

Nitrogen has 7 electrons as its atomic number is given to be 7. So they are arranged as:

  $N=1s^{2}2s^{{}^2}2p^3$

(b)

Interpretation Introduction

Interpretation:

The general valence configuration of francium needs to be given.

Concept Introduction: The general valence configuration of a given element is the arrangement of electrons in the increasing order of energy in the sub-shells of on atom.

Answer to Problem 65A

The general valence configuration of Francium is,

  $Fr{=}^{3}1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{2}4p^{6}4d^{10}5s^{2}5p^{6}4f^{14}5d^{10}6s^{2}6p^{6}7s^1$

Explanation of Solution

Francium has 87 electrons as its atomic number is given to be 87. So they are arranged as:

  $Fr{=}^{3}1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{2}4p^{6}4d^{10}5s^{2}5p^{6}4f^{14}5d^{10}6s^{2}6p^{6}7s^1$

(c)

Interpretation Introduction

Interpretation:

The general valence configuration of chlorine needs to be given.

Concept Introduction: The general valence configuration of a given element is the arrangement of electrons in the increasing order of energy in the sub-shells of on atom.

Answer to Problem 65A

The general valence configuration of Chlorine is,

  $Cl=1s^{2}2s^{2}2p^{6}3s^{2}3p^5$

Explanation of Solution

Chlorine has 17 electrons as its atomic number is given to be 17. So they are arranged as:

  $Cl=1s^{2}2s^{2}2p^{6}3s^{2}3p^5$

(d)

Interpretation Introduction

Interpretation:

The general valence configuration of Se element needs to be given.

Concept Introduction: The general valence configuration of a given element is the arrangement of electrons in the increasing order of energy in the sub-shells of on atom.

Answer to Problem 65A

The general valence configuration of Selenium is, $Se=1s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2 4p^4$

Explanation of Solution

Selenium has 34 electrons as its atomic number is given to be 34. So they are arranged as:

  $Se=1s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2 4p^4$

(e)

Interpretation Introduction

Interpretation:

The general valence configuration of the given element Mg needs to be given.

Concept Introduction: The general valence configuration of a given element is the arrangement of electrons in the increasing order of energy in the sub-shells of on atom.

Answer to Problem 65A

The general valence configuration of Magnesium is, $Mg=1s^2 2s^2 2p^6 3s^2$

Explanation of Solution

Magnesium has 12 electrons as its atomic number is given to be 12. So they are arranged as:

  $Mg=1s^2 2s^2 2p^6 3s^2$