rules for oxidation states

The oxidation number of an atomic or elemental substance is ___ .

0

when combined with a nonmetal, the oxidation number of hydrogen is usually ___ .

+1

Oxygen typically has an oxidation number of ___ in most compounds.

-2

The oxidation number of a monoatomic ion is equal to its ___ .

charge

In compounds, the sum of the oxidation numbers of all the elements must equal the overall ___ of the compound.

charge

In peroxides, the oxidation number of oxygen is ___ .

-1

For hydrogen and a metal in compounds, the oxidation number of H is always ___ .

-1

The oxidation number of fluorine and all other Group 17 elements in compounds is usually always ___.

-1

the metal elements of group 1 form compounds in which the metal atoms have oxidation numbers of ___.

+1

the metal elements of group 2 form compounds in which the metal atoms have oxidation numbers of ___.

+2

the sum of oxidation numbers in a substance with NO charge must be equal to ____.

0