Chemistry Nomenclature and Polyatomic ions

Naming ionic and molecular compounds -- not including acids, hydrocarbons, alkanes, or hydroplanes

Acetate

CH3COO(-)

Carbonate

CO3(-2)

Bicarbonate

HCO3(-)

Chlorate

ClO3(-)

Perchlorate

ClO4(-)

Chromate

CrO4(2-)

Cyanide

CN(-)

Hydroxide

OH(-)

Phosphate

PO4(3-)

Sulfate

SO4(2-)

Ammonium

NH4(+)

Monatomic cation

Name is the same as element name

Monatomic anion

Name derived from element name with suffix “-ide” added

Naming ionic cation when they are transition metals

Element name with specified charge in roman numerals

Which order do you name elements in molecular compounds?

• Element to left comes first and right second

• Element closer to the bottom of a group (if in same group) comes first

Oxygen will come second in name of molecular compounds unless combined with ______

Fluorine (Fl)

When naming molecular compounds you must always include a _____ on both elements. ______ is omitted on the first element

• numerical prefix

• The prefix “mono-”

When naming ionic compounds, do not include a ___fix on either element.

“pre”