Chapter 5, Problem 62E

Interpretation Introduction

(a)

Interpretation:

The electron dot structure for the atom of $\text{He}$ is to be drawn.

Concept introduction:

The electron dot formula is used for the identification of valence electrons present in an atom. It shows the symbol of an atom with its valence electron around it. It is also called as Lewis dot structure. The valence electrons around an atom are shown by dots. One dot represents one valence electron.

The rules to draw electron dot formula are given below.

• First, the symbol of an element is written.

• With the help of group number, the number of valence electrons is determined.

• The valance electrons are drawn around the atom by dots.

Answer to Problem 62E

The electron dot structure for the atom of $\text{He}$ is shown below.

Explanation of Solution

The atomic number of $\text{He}$ is $2$. It belongs to the group $\text{VIIIA}/18$ of periodic table. It has two electrons in its valence shell. Therefore, the electron dot structure of $\text{He}$ contains two dots around $\text{He}$ atom. The electron dot structure of $\text{He}$ is shown below.

Figure 1

Conclusion

The electron dot structure of $\text{He}$ is shown in Figure 1.

Interpretation Introduction

(b)

Interpretation:

The electron dot structure for the atom of $\text{Pb}$ is to be drawn.

Concept introduction:

The electron dot formula is used for the identification of valence electrons present in an atom. It shows the symbol of an atom with its valence electron around it. It is also called as Lewis dot structure. The valence electrons around an atom are shown by dots. One dot represents one valence electron.

The rules to draw electron dot formula are given below.

• First, the symbol of an element is written.

• With the help of group number, the number of valence electrons is determined.

• The valance electrons are drawn around the atom by dots.

Answer to Problem 62E

The electron dot structure for the atom of $\text{Pb}$ is shown below.

Explanation of Solution

Lead belongs to the group $\text{IVA}/14$ of periodic table. It has four electrons in its valence shell. Therefore, the electron dot structure of $\text{Pb}$ contains four dots around $\text{Pb}$ atom. The electron dot structure of $\text{Pb}$ is shown below.

Figure 2

Conclusion

The electron dot structure of $\text{Pb}$ is shown in Figure 2.

Interpretation Introduction

(c)

Interpretation:

The electron dot structure for the atom of $\text{Se}$ is to be drawn.

Concept introduction:

The electron dot formula is used for the identification of valence electrons present in an atom. It shows the symbol of an atom with its valence electron around it. It is also called as Lewis dot structure. The valence electrons around an atom are shown by dots. One dot represents one valence electron.

The rules to draw electron dot formula are given below.

• First, the symbol of an element is written.

• With the help of group number, the number of valence electrons is determined.

• The valance electrons are drawn around the atom by dots.

Answer to Problem 62E

The electron dot structure for the atom of $\text{Se}$ is shown below.

Explanation of Solution

Selenium belongs to the group $\text{VIA}/16$ of periodic table. It has six electrons in its valence shell. Therefore, the electron dot structure of $\text{Se}$ contains six dots around $\text{Se}$ atom. The electron dot structure of $\text{Se}$ is shown below.

Figure 3

Conclusion

The electron dot structure of $\text{Se}$ is shown in Figure 3.

Interpretation Introduction

(d)

Interpretation:

The electron dot structure for the atom of $\text{Ne}$ is to be drawn.

Concept introduction:

The electron dot formula is used for the identification of valence electrons present in an atom. It shows the symbol of an atom with its valence electron around it. It is also called as Lewis dot structure. The valence electrons around an atom are shown by dots. One dot represents one valence electron.

The rules to draw electron dot formula are given below.

• First, the symbol of an element is written.

• With the help of group number, the number of valence electrons is determined.

• The valance electrons are drawn around the atom by dots.

Answer to Problem 62E

The electron dot structure for the atom of $\text{Ne}$ is shown below.

Explanation of Solution

Neon belongs to the group $\text{VIIIA}/18$ of periodic table. It has eight electrons in its valence shell. Therefore, the electron dot structure of $\text{Ne}$ contains eight dots around $\text{Ne}$ atom. The electron dot structure of $\text{Ne}$ is shown below.

Figure 4

Conclusion

The electron dot structure of $\text{Ne}$ is shown in Figure 4.

Interpretation Introduction

(e)

Interpretation:

The electron dot structure for the atom of $\text{Cs}$ is to be drawn.

Concept introduction:

The electron dot formula is used for the identification of valence electrons present in an atom. It shows the symbol of an atom with its valence electron around it. It is also called as Lewis dot structure. The valence electrons around an atom are shown by dots. One dot represents one valence electron.

The rules to draw electron dot formula are given below.

• First, the symbol of an element is written.

• With the help of group number, the number of valence electrons is determined.

• The valance electrons are drawn around the atom by dots.

Answer to Problem 62E

The electron dot structure for the atom of $\text{Cs}$ is shown below.

Explanation of Solution

Cesium belongs to the group $\text{IA}/1$ of periodic table. It has one electron in its valence shell. Therefore, the electron dot structure of $\text{Cs}$ contains one dot around $\text{Cs}$ atom. The electron dot structure of $\text{Cs}$ is shown below.

Figure 5

Conclusion

The electron dot structure of $\text{Cs}$ is shown in Figure 5.

Interpretation Introduction

(f)

Interpretation:

The electron dot structure for the atom of $\text{Ga}$ is to be drawn.

Concept introduction:

The electron dot formula is used for the identification of valence electrons present in an atom. It shows the symbol of an atom with its valence electron around it. It is also called as Lewis dot structure. The valence electrons around an atom are shown by dots. One dot represents one valence electron.

The rules to draw electron dot formula are given below.

• First, the symbol of an element is written.

• With the help of group number, the number of valence electrons is determined.

• The valance electrons are drawn around the atom by dots.

Answer to Problem 62E

The electron dot structure for the atom of $\text{Ga}$ is shown below.

Explanation of Solution

Gallium belongs to the group $\text{IIIA}/13$ of periodic table. It has three electrons in its valence shell. Therefore, the electron dot structure of $\text{Ga}$ contains three dots around $\text{Ga}$ atom. The electron dot structure of $\text{Ga}$ is shown below.

Figure 6

Conclusion

The electron dot structure of $\text{Ga}$ is shown in Figure 6.

Interpretation Introduction

(g)

Interpretation:

The electron dot structure for the atom of $\text{Sb}$ is to be drawn.

Concept introduction:

The electron dot formula is used for the identification of valence electrons present in an atom. It shows the symbol of an atom with its valence electron around it. It is also called as Lewis dot structure. The valence electrons around an atom are shown by dots. One dot represents one valence electron.

The rules to draw electron dot formula are given below.

• First, the symbol of an element is written.

• With the help of group number, the number of valence electrons is determined.

• The valance electrons are drawn around the atom by dots.

Answer to Problem 62E

The electron dot structure for the atom of $\text{Sb}$ is shown below.

Explanation of Solution

Antimony belongs to the group $\text{VA}/15$ of periodic table. It has five electrons in its valence shell. Therefore, the electron dot structure of $\text{Sb}$ contains five dots around $\text{Sb}$ atom. The electron dot structure of $\text{Sb}$ is shown below.

Figure 7

Conclusion

The electron dot structure of $\text{Sb}$ is shown in Figure 7.

Interpretation Introduction

(h)

Interpretation:

The electron dot structure for the atom of $\text{Br}$ is to be drawn.

Concept introduction:

The electron dot formula is used for the identification of valence electrons present in an atom. It shows the symbol of an atom with its valence electron around it. It is also called as Lewis dot structure. The valence electrons around an atom are shown by dots. One dot represents one valence electron.

The rules to draw electron dot formula are given below.

• First, the symbol of an element is written.

• With the help of group number, the number of valence electrons is determined.

• The valance electrons are drawn around the atom by dots.

Answer to Problem 62E

The electron dot structure for the atom of $\text{Br}$ is shown below.

Explanation of Solution

Bromine belongs to the group $\text{VIIA}/17$ of periodic table. It has seven electrons in its valence shell. Therefore, the electron dot structure of $\text{Br}$ contains seven dots around $\text{Br}$ atom. The electron dot structure of $\text{Br}$ is shown below.

Figure 8

Conclusion

The electron dot structure of $\text{Br}$ is shown in Figure 8.