1. 9.1
Monatomic Ions
__________________ ions consist of a __________ atom with a __________ or ________________ charge resulting from the ____________ or __________ of one or more _____________ __________________, respectively.

2. 9.1
Monatomic Ions
Cations
When the metals in Groups 1A, 2A, and 3A _________ electrons, they form ____________ with ________________ charges equal to their group number.

3. 9.1
Monatomic Ions
The ________________ of the __________ of the Group 1A, Group 2A, and Group 3A metals are the same as the _________ of the __________, followed by the word ion or cation.

4. 9.1
Monatomic Ions
These elements have ionic charges that can be obtained from their group numbers.
The representative elements shown form positive ions with charges equal to their group numbers. Applying Concepts Are the ions anions or cations?

5. 9.1
Monatomic Ions
Anions
The charge of any ion of a Group A _______________ is determined by ________________ 8 from the ______________ _____________.
Anion names start with the stem of the element name and end in -________.

6. These Group A elements form anions.
9.1
Monatomic Ions
These Group A elements form anions.
Note the positions of the nonmetals and the metalloid, arsenic. These elements form anions. Common transition elements that form more than one ion are also shown. Applying Concepts Do the transition metals form anions or cations?

7. 9.1
Monatomic Ions

8. 9.1
Monatomic Ions
The charges of the cations of many ____________ ______________ ions must be determined from the number of electrons lost.

9. 9.1
Monatomic Ions
These colorful solutions contain the transition metal ions Co3+, Cr3+, Fe3+, Ni2+, and Mn2+. Name them:
The ions of these transition metals produce an array of colors when dissolved in water. From left to right, the ions are Co3+, Cr3+, Fe3+, Ni2+, and Mn2+.
Many transition metal compounds are colored and can be used as pigments.

10. Two methods are used to name the ions of transition metals.
9.1
Monatomic Ions
Two methods are used to name the ions of transition metals.
The ___________ system
The _____________ method

11. 9.1
Monatomic Ions
In the Stock system, a ___________ _______________ in parentheses is placed after the ____________ of the element to indicate the _____________ _____________ of the _________________.

12. 9.1
Monatomic Ions
In an older less useful method, the classical name of the element is used to form the root name for the element.

13. 9.1
Monatomic Ions

14. 1.1
Conceptual Problem 9.1

15. Practice Problems For Conceptual Problem 9.1

16. These models show the structures of four common polyatomic ions.
9.1
Polyatomic Ions
These models show the structures of four common polyatomic ions.
These molecular models show the arrangement of atoms in four common polyatomic ions. Interpreting Diagrams How does the ammonium ion differ from the other three?

17. The names of most polyatomic anions end in -_________ or -__________.
9.1
Polyatomic Ions
Some ions, called __________________ ions, are composed of _________ ___________ _____________ atom.
The names of most polyatomic anions end in -_________ or -__________.

18. Fertilizers contain HPO42– and H2PO4– ions.
9.1
Polyatomic Ions
Sodium hydrogen carbonate can relieve an upset stomach. Give its formula:
HCO3–, HPO42–, and H2PO4– ions in your blood are critical for your health. Name them:
Hydrogen-containing polyatomic ions are part of many compounds that affect your daily life. a) Sodium hydrogen carbonate, which contains the HCO3- ion, can relieve an upset stomach. b) The presence of dissolved HCO3-, HPO42-, and H2PO4- ions in your blood is critical for your health. c) Crop dusters spread fertilizers containing HPO42- and H2PO4- ions.
Fertilizers contain HPO42– and H2PO4– ions.