Oxidation Numbers for AP Chem

The oxidation number of any uncombined element is ___.

0

The Oxidation number of a _______________________ equals the charge on the ion.

monatomic ion

The more _______________ element in a binary compound is assigned the number equal to the charge it would have if it were an ion.

electronegative

The more electronegative element in a binary compound is assigned the number ____________ the charge it would have if it were an ion.

equal to

The oxidation number of fluorine in a compound is always ______.

-1

Oxygen has an oxidation number of ____ unless it is combined with F.

-2

Oxygen has an oxidation number of ______ when combined with F.

+2

Oxygen has an Oxidation number of ______ when in a peroxide.

-1

The oxidation state of hydrogen in most of its compounds is ______.

+1

Hydrogen's oxidation number is ____ when combined with a metal.

-1

Elements in group 1 all have an oxidation numbers of ______.

+1

Elements in group 2 all have an oxidation number of _____.

+2

Aluminum has an oxidation number of _____.

+3

The sum of the oxidation number of all atoms in a neutral compound is ___.

0

The _____ of the oxidation number of all atoms in a neutral compound is 0.

sum

The ______ of the oxidation number of all atoms in a polyatomic ion equals the charge of the ion.

sum

The sum of the oxidation number of all atoms in a ______________________ equals the charge of the ______.

polyatomic ion, ion