Chemistry for Today: General, Organic, and Biochemistry
Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN: 9781305960060
Author: Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher: Cengage Learning
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Chapter 3, Problem 3.28E
Interpretation Introduction

(a)

Interpretation:

The symbol and name for the element contains only two 2p electrons is to be predicted.

Concept introduction:

The elements in a modern periodic table are arranged in increasing order of their atomic number. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are 7 periods and 18 groups in modern periodic table.

Expert Solution
Check Mark

Answer to Problem 3.28E

The name of the element that contains only two 2p electrons is carbon and its symbol is C respectively.

Explanation of Solution

Electronic configuration tells about the arrangement of the electrons in each subshell and each orbit of an atom.

The electronic configuration for an element that contains only two 2p electrons would be 1s22s22p2. Therefore, the atomic number of an element is 6 that is carbon. The symbol used for carbon is C.

Conclusion

The name of the element that contains only two 2p electrons is carbon and its symbol is C respectively.

Interpretation Introduction

(b)

Interpretation:

The symbol and name for the element contains an unpaired 3s electron is to be predicted.

Concept introduction:

The elements in a modern periodic table are arranged in increasing order of their atomic number. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are 7 periods and 18 groups in modern periodic table.

Expert Solution
Check Mark

Answer to Problem 3.28E

The name of the element that contains an unpaired 3s electron is sodium and its symbol is Na respectively.

Explanation of Solution

Electronic configuration tells about the arrangement of the electrons in each subshell and each orbit of an atom.

The electronic configuration for an element that contains an unpaired 3s electron would be 1s22s22p63s1. Therefore, the atomic number of an element is 11 that is sodium. The symbol used for sodium is Na.

Conclusion

The name of the element that contains an unpaired 3s electron is sodium and its symbol is Na respectively.

Interpretation Introduction

(c)

Interpretation:

The symbol and name for the element contains two unpaired 3p electrons is to be predicted.

Concept introduction:

The elements in a modern periodic table are arranged in increasing order of their atomic number. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are 7 periods and 18 groups in modern periodic table.

Expert Solution
Check Mark

Answer to Problem 3.28E

The name of the elements that contain two unpaired 3p electrons are sulfur and silicon and their symbols are S and Si respectively.

Explanation of Solution

Electronic configuration tells about the arrangement of the electrons in each subshell and each orbit of an atom.

The electronic configuration for an element that contains two unpaired 3p electrons would be 1s22s22p63s23p4 and 1s22s22p63s23p2.

The element having electronic configuration 1s22s22p63s23p4 is sulfur. The symbol used for sulfur is S. The arrangement of electrons in silicon is shown below.

Chemistry for Today: General, Organic, and Biochemistry, Chapter 3, Problem 3.28E , additional homework tip  1

Figure 1

The element having electronic configuration 1s22s22p63s23p2 is silicon. The symbol used for silicon is Si. The arrangement of electrons in silicon is shown below.

Chemistry for Today: General, Organic, and Biochemistry, Chapter 3, Problem 3.28E , additional homework tip  2

Figure 2

Hence, sulfur and silicon elements contain two unpaired 3p electrons and their symbols are S and Si respectively.

Conclusion

The name of the elements that contain two unpaired 3p electrons are sulfur and silicon and their symbols are S and Si respectively.

Interpretation Introduction

(d)

Interpretation:

The symbol and name for the element contains three 4d electrons is to be predicted.

Concept introduction:

The elements in a modern periodic table are arranged in increasing order of their atomic number. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are 7 periods and 18 groups in modern periodic table.

Expert Solution
Check Mark

Answer to Problem 3.28E

The name of the element that contains three 4d electrons is niobium and its symbol is Nb respectively.

Explanation of Solution

Electronic configuration tells about the arrangement of the electrons in each subshell and each orbit of an atom.

The electronic configuration for an element that three 4d electrons would be 1s22s22p63s23p64s23d104p65s24d3. The 4s and 5s orbitals are filled first because the energy of 4s and 5s orbital is lower than the 3d and 4d. Therefore, the atomic number of an element is 41 that is niobium. The symbol used forniobium is Nb.

Conclusion

The name of the element that contains three 4d electrons is niobium and its symbol is Nb respectively.

Interpretation Introduction

(e)

Interpretation:

The symbol and name for the element contains three unpaired 3d electrons is to be predicted.

Concept introduction:

The elements in a modern periodic table are arranged in increasing order of their atomic number. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are 7 periods and 18 groups in modern periodic table.

Expert Solution
Check Mark

Answer to Problem 3.28E

The name of the element that contains three unpaired 3d electrons is vanadium and cobalt and their symbols are V and Co respectively.

Explanation of Solution

Electronic configuration tells about the arrangement of the electrons in each subshell and each orbit of an atom.

The electronic configuration for an element that contains three unpaired 3d electrons would be 1s22s22p63s23p64s23d3 and 1s22s22p63s23p64s23d7.

The element having electronic configuration 1s22s22p63s23p64s23d3 is vanadium. The symbol used for vanadium is V. The arrangement of electrons in vanadium is shown below.

Chemistry for Today: General, Organic, and Biochemistry, Chapter 3, Problem 3.28E , additional homework tip  3

Figure 3

The element having electronic configuration 1s22s22p63s23p64s23d7 is cobalt. The symbol used for cobalt is Co. The arrangement of electrons in cobalt is shown below.

Chemistry for Today: General, Organic, and Biochemistry, Chapter 3, Problem 3.28E , additional homework tip  4

Figure 4

Hence, vanadium and cobalt elements contain three unpaired 3d electrons and their symbols are V and Co respectively.

Conclusion

The name of the element that contains three unpaired 3d electrons is vanadium and cobalt and their symbols are V and Co respectively.

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Chapter 3 Solutions

Chemistry for Today: General, Organic, and Biochemistry

Ch. 3 - What is the maximum number of electrons that can...Ch. 3 - What is the maximum number of electrons that can...Ch. 3 - How many orbitals are found in the fourth shell?...Ch. 3 - How many orbitals are found in the second shell?...Ch. 3 - Prob. 3.15ECh. 3 - How many orbitals are found in a 4f subshell? What...Ch. 3 - Identify the subshells found in the fourth shell;...Ch. 3 - Look at the periodic table and tell how many...Ch. 3 - Look at the periodic table and tell how many...Ch. 3 - What period 6 element has chemical properties most...Ch. 3 - Prob. 3.21ECh. 3 - Prob. 3.22ECh. 3 - Prob. 3.23ECh. 3 - Write an electronic configuration for each of the...Ch. 3 - Prob. 3.25ECh. 3 - Write electronic configuration and answer the...Ch. 3 - Write electronic configuration and answer the...Ch. 3 - Prob. 3.28ECh. 3 - Prob. 3.29ECh. 3 - Prob. 3.30ECh. 3 - Prob. 3.31ECh. 3 - Prob. 3.32ECh. 3 - Prob. 3.33ECh. 3 - Classify each of the following elements into the...Ch. 3 - Classify each of the following elements into the...Ch. 3 - Prob. 3.36ECh. 3 - Prob. 3.37ECh. 3 - Classify the following as metals, nonmetals, or...Ch. 3 - Prob. 3.39ECh. 3 - Prob. 3.40ECh. 3 - Prob. 3.41ECh. 3 - Use trends within the periodic table and indicate...Ch. 3 - Prob. 3.43ECh. 3 - Use trends within the periodic table and indicate...Ch. 3 - Prob. 3.45ECh. 3 - How would you expect the chemical properties of...Ch. 3 - Prob. 3.47ECh. 3 - What would be the mass in mg of 3.01020atoms that...Ch. 3 - Prob. 3.49ECh. 3 - A 10.02-g sample of an element contains 0.250mol...Ch. 3 - Prob. 3.51ECh. 3 - Prob. 3.52ECh. 3 - Prob. 3.53ECh. 3 - Calcium metal reacts with cold water as follows:...Ch. 3 - Prob. 3.55ECh. 3 - Prob. 3.56ECh. 3 - The arrangement of the modern periodic table is...Ch. 3 - The horizontal rows of the periodic table are...Ch. 3 - Prob. 3.59ECh. 3 - Which two elements have chemical properties that...Ch. 3 - Prob. 3.61ECh. 3 - Prob. 3.62ECh. 3 - What does the number 36 represent on the periodic...Ch. 3 - Prob. 3.64ECh. 3 - Prob. 3.65ECh. 3 - Prob. 3.66ECh. 3 - From the periodic table, which of K and Br is...Ch. 3 - Prob. 3.68ECh. 3 - Prob. 3.69ECh. 3 - Which of the following has the largest first...Ch. 3 - Which elements conduct electricity? a. metals b....Ch. 3 - What term describes the electrons in the outermost...Ch. 3 - If the electron configuration of an element is...Ch. 3 - Identify the two atoms with the same number of...Ch. 3 - The number of unpaired electrons in the outer...Ch. 3 - How many valence electrons are needed to complete...Ch. 3 - An atom that has five 3p electrons in its ground...
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