What is the oxidation number of the monoatomic ions of the following elements? Drag each item to the appropriate bin. Reset Help sFLi Ca Na N Br AI o Mg H +3 +2 +1 -1 -2
What is the oxidation number of the monoatomic ions of the following elements? Drag each item to the appropriate bin. Reset Help sFLi Ca Na N Br AI o Mg H +3 +2 +1 -1 -2
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:To determine the oxidation state of a monoatomic ion, first determine the charge of the ion. The oxidation state will be the same as the charge. For example, I forms the monoatomic ion I¯; therefore, the
oxidation state of the monoatomic ion for I is –1.
Part A
What is the oxidation number of the monoatomic ions of the following elements?
Drag each item to the appropriate bin.
Reset
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F
Li
Са
Na
Br
Al
Mg
H
+3
+2
+1
-1
-2
-3
Submit
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|이

Transcribed Image Text:Learning Goal:
To assign oxidation states to elements in monoatomic ions, polyatomic ions, and neutral compounds.
An oxidation state (also called an oxidation number) is similar to a charge and allows you to keep track of electron transfer in oxidation-reduction reactions. Some guidelines for assigning oxidation states are
described here:
1. The oxidation state of an atom in a free element is 0. Examples of free elements include Mg, Cl2 , and N2.
2. The oxidation state of a monoatomic ion is equal to its charge. Examples of monoatomic ions include Mg²+ and Cl-, the individual ions present in the ionic compound MgCl2 .
3. The sum of the oxidation states of all atoms is
• for a neutral molecule or formula unit: zero; and
• for an ion: the charge of the ion.
4. In compounds,
• group 1A metals have an oxidation state of +1, and
group 2A metals have an oxidation state of +2.
5. In compounds, nonmetals are assigned oxidation states according to the following hierarchical table. Entries at the top of the table have priority over entries at the bottom.
Nonmetal Oxidation state
fluorine
-1
hydrogen
+1
охудen
-2
group 7A
-1
group 6A
-2
group 5A
-3
The oxidation states of monoatomic ions
To determine the oxidation state of a monoatomic ion, first determine the charge of the ion. The oxidation state will be the same as the charge. For example, I forms the monoatomic ion I¯; therefore, the
oxidation state of the monoatomic ion for I is –1.
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