Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
13 Cards in this Set
- Front
- Back
|
Oxidation number of a free atom in the gas state, an atom w/ no chemical environment, not bonded to other atoms
|
0
|
|
|
Oxidation number of an atomic within a molecule of an element
|
0
|
|
|
Oxidation number of a monoatomic ion in gas state or in the solid state surrounded by other ions in a crystal lattice
|
charge of the ion
|
|
|
Oxidation number of hydrogen in a molecular compound
|
+1
|
|
|
Oxidation number of oxygen in a molecular compound
|
-2
|
|
|
Oxidation number of an atom in Group 1A element in a compound
|
+1
|
|
|
Oxidation number of an atom of Group llA element in a compound
|
+2
|
|
|
Oxidation number of an atom in Group llVA element in a compound
|
-1
|
|
|
Sum of oxidation numbers of all atoms in a compound
|
0
|
|
|
Sum of oxidation numbers of all atoms in a polyatomic ion
|
equals the charge of the ion
|
|
|
Hydrogen exception
|
ON is -1 in compounds that are less electronegative than H
|
|
|
Halogen exception
|
ON is positive when combined with one having a higher electronegative
|
|
|
Oxygen exceptions
|
ON of OF2 is +2 bc F is more electronegative than O
ON of ea O atom in BaO2 is -1 bc of the 2- charge of O2 ON of O in KO2 is -1/2 (-1/2 is an average for the two chemically nonequivalent O atoms in KO2) |
