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 3.1E

Identify the group and period to which each of the following elements belongs:

a. Si

b. element number 21

c. zinc

d. element number 35

Expert Solution
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Interpretation Introduction

(a)

Interpretation:

The group and period of the element Si is to be stated.

Concept introduction:

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

Answer to Problem 3.1E

The group of the element silicon (Si) is IVA and it belongs to third period.

Explanation of Solution

The given element Si is silicon. It has an atomic number of 14. The element with this atomic number belongs to vertical column 14 known as group IVA and third horizontal row known as period 3 in the periodic table. Thus, silicon, Si, belongs to group IVA and period 3.

Conclusion

The group and period of the element Si is found to be IVA and 3 respectively.

Expert Solution
Check Mark
Interpretation Introduction

(b)

Interpretation:

The group and period of the element number 21 is to be stated.

Concept introduction:

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

Answer to Problem 3.1E

The group of the element number 21 that is scandium (Sc) is IIIB and it belongs to fourth period.

Explanation of Solution

The given element number 21 is scandium (Sc). It has an atomic number equal to the element number 21 as the elements are arranged in periodic table in order of their increasing atomic numbers. The element with atomic number 21 belongs to vertical column 3 known as group IIIB and fourth horizontal row known as period 4 in the periodic table. Thus, scandium (Sc) belongs to group IIIB and period 4.

Conclusion

The group and period of the element number 21, scandium (Sc) is found to be IIIB and 4 respectively.

Expert Solution
Check Mark
Interpretation Introduction

(c)

Interpretation:

The group and period of the element zinc is to be stated.

Concept introduction:

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

Answer to Problem 3.1E

The group of the element zinc (Zn) is IIB and it belongs to fourth period.

Explanation of Solution

The given element zinc has a symbol of Zn. It has an atomic number of 30. The element with this atomic number belongs to vertical column 12 known as group IIB and fourth horizontal row known as period 4 in the periodic table. Thus, zinc, Zn, belongs to group IIB and period 4.

Conclusion

The group and period of the element zinc (Zn) is found to be IIB and 4 respectively.

Expert Solution
Check Mark
Interpretation Introduction

(d)

Interpretation:

The group and period of the element number 35 is to be stated.

Concept introduction:

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

Answer to Problem 3.1E

The group of the element number 35 that is bromine (Br) is VIIA and it belongs to fourth period.

Explanation of Solution

The given element number 35 is bromine (Br). It has an atomic number equal to the element number 35 as the elements are arranged in periodic table in order of their increasing atomic numbers. The element with atomic number 35 belongs to vertical column 17 known as group VIIA and fourth horizontal row known as period 4 in the periodic table. Thus, bromine (Br) belongs to group VIIA and period 4.

Conclusion

The group and period of the element number 35 that is bromine (Br) is found to be VIIA and 4 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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