O2

Fluoride

*: indicates that the charge can be found simply by looking at its position on the periodic table.

Chloride

*: indicates that the charge can be found simply by looking at its position on the periodic table.

Bromide

*: indicates that the charge can be found simply by looking at its position on the periodic table.

Iodide

*: indicates that the charge can be found simply by looking at its position on the periodic table.

Negative ions that consist of a single atom are named by adding: -ide

remember it by: ide--> I'de [ I would ]

I=me=one person.

one atom.

The -ite ending= low oxidation state.

Thus,the NO₂^- ion is the nitrite ion.

[an O2 is relatively low oxidation]

The -ate ending= a high oxidation state.

Thus, the NO₃^- ion, for example, is the nitrate ion.

REMEMBER: ate-->i ate something-->i want to eat something LARGE. 

The prefix hypo- = the very lowest oxidation state.

Thus, the ClO- ion is the hypochlorite ion.

The prefix per- (as in hyper-)= the very highest oxidation state.

Thus, the ClO₄^- ion is perchlorate ion.

There are only a handful of exceptions to these generalizations.

Hydroxide (OH^-)

Cyanide (CN^-)

  Peroxide (O₂^2-) 

  [once thought to be monatomic ions.]