Chemical Nomenclature: Binary Compounds and Polyatomic Ions

Vocabulary flashcards covering the definitions of binary compounds, Greek numerical prefixes for covalent compounds, and formulas of common polyatomic ions.

Binary Compounds

Compounds that are made up of exactly $2$ elements.

Binary Covalent Compounds

Compounds that are made up of $2$ nonmetals, such as $H_2S$.

Binary Ionic Compounds

Compounds that are made up of a metal and a nonmetal, such as $NaCl$.

mon(o)-

The covalent prefix representing $1$ atom.

di-

The covalent prefix representing $2$ atoms.

tri-

The covalent prefix representing $3$ atoms.

tetr(a)-

The covalent prefix representing $4$ atoms.

pent(a)-

The covalent prefix representing $5$ atoms.

hex(a)-

The covalent prefix representing $6$ atoms.

hept(a)-

The covalent prefix representing $7$ atoms.

oct(a)-

The covalent prefix representing $8$ atoms.

non(a)-

The covalent prefix representing $9$ atoms.

dec(a)-

The covalent prefix representing $10$ atoms.

Ammonium ion

A polyatomic ion with the chemical formula $NH_4^+$.

Acetate ion

A polyatomic ion with the chemical formula $C_2H_3O_2^-$ or $CH_3COO^-$.

Bromate ion

A polyatomic ion with the chemical formula $BrO_3^-$.

Carbonate ion

A polyatomic ion with the chemical formula $CO_3^{2-}$.

Chlorate ion

A polyatomic ion with the chemical formula $ClO_3^-$.

Cyanide ion

A polyatomic ion with the chemical formula $CN^-$.

Hydroxide ion

A polyatomic ion with the chemical formula $OH^-$.

Nitrate ion

A polyatomic ion with the chemical formula $NO_3^-$.

Phosphate ion

A polyatomic ion with the chemical formula $PO_4^{3-}$.

Sulfate ion

A polyatomic ion with the chemical formula $SO_4^{2-}$.

Sulfite ion

A polyatomic ion with the chemical formula $SO_3^{2-}$.