Chap9WBKEY 1
05_Chem_GRSW_Ch09.SE/TE 6/11/04 3:33 PM Page 79
Name ___________________________
9
Date ___________________
Class __________________
CHEMICAL NAMES AND FORMULAS
SECTION 9.1 NAMING IONS (pages 253–258)
This section explains the use of the periodic table to determine the charge of an ion. It also defines polyatomic ion and gives the names and formulas for the most common polyatomic ions.
Monatomic Ions (pages 253–256)
1. What are monatomic ions?
Monatomic ions are ions consisting of only one atom.
2. How is the ionic charge of a Group 1A, 2A, or 3A ion determined?
The ionic charge is numerically equal to the group number.
3. How is the ionic charge of a Group 5A, 6A, or 7A ion determined?
The charge of an ion in Groups 5A, 6A, or 7A is determined by subtracting 8 from the group number.
4. Circle the letter of the type of element that often has more than one common ionic charge.
© Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved.
a. alkali metal
b. alkaline earth metal
c. transition metal
d. nonmetal
Stock system
5. The ______________________ of naming transition metal cations uses a Roman numeral in parentheses to indicate the numeric value of the ionic charge.
6. An older naming system uses the suffix -ous to name the cation with the lesser ______________________ charge, and the suffix -ic to name the cation with the greater ______________________ charge. 7. What is a major advantage of the Stock system over the old naming system?
The Stock system gives the actual charge of the ion.
Chapter 9 Chemical Names and Formulas 79
05_Chem_GRSW_Ch09.SE/TE 6/11/04 3:33 PM Page 80
Name ___________________________
Date ___________________
Class __________________
CHAPTER 9, Chemical Names and Formulas (continued)
8. Use the periodic table to write the name and formula (including charge) for each ion in the table below.
Element
Name
Formula
Fluorine
fluoride ion
F–
Calcium
calcium ion
Ca2+
Oxygen
oxide ion
O2–
Name ___________________________
9
Date ___________________
Class __________________
CHEMICAL NAMES AND FORMULAS
SECTION 9.1 NAMING IONS (pages 253–258)
This section explains the use of the periodic table to determine the charge of an ion. It also defines polyatomic ion and gives the names and formulas for the most common polyatomic ions.
Monatomic Ions (pages 253–256)
1. What are monatomic ions?
Monatomic ions are ions consisting of only one atom.
2. How is the ionic charge of a Group 1A, 2A, or 3A ion determined?
The ionic charge is numerically equal to the group number.
3. How is the ionic charge of a Group 5A, 6A, or 7A ion determined?
The charge of an ion in Groups 5A, 6A, or 7A is determined by subtracting 8 from the group number.
4. Circle the letter of the type of element that often has more than one common ionic charge.
© Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved.
a. alkali metal
b. alkaline earth metal
c. transition metal
d. nonmetal
Stock system
5. The ______________________ of naming transition metal cations uses a Roman numeral in parentheses to indicate the numeric value of the ionic charge.
6. An older naming system uses the suffix -ous to name the cation with the lesser ______________________ charge, and the suffix -ic to name the cation with the greater ______________________ charge. 7. What is a major advantage of the Stock system over the old naming system?
The Stock system gives the actual charge of the ion.
Chapter 9 Chemical Names and Formulas 79
05_Chem_GRSW_Ch09.SE/TE 6/11/04 3:33 PM Page 80
Name ___________________________
Date ___________________
Class __________________
CHAPTER 9, Chemical Names and Formulas (continued)
8. Use the periodic table to write the name and formula (including charge) for each ion in the table below.
Element
Name
Formula
Fluorine
fluoride ion
F–
Calcium
calcium ion
Ca2+
Oxygen
oxide ion
O2–