SI Prefixes and Polyatomic Ions

A set of vocabulary flashcards for mandatory SI unit prefixes and polyatomic ion formulas.

mega

An SI prefix denoted by the symbol $M$, representing a factor of $1,000,000 = 10^6$ (for example, $1\text{ megameter (Mm)} = 10^6\,\text{m}$).

kilo

An SI prefix denoted by the symbol $k$, representing a factor of $1,000 = 10^3$ (for example, $1\text{ kilometer (km)} = 10^3\,\text{m}$).

centi

An SI prefix denoted by the symbol $c$, representing a factor of $0.01 = 10^{-2}$ (for example, $1\text{ centimeter (cm)} = 10^{-2}\,\text{m}$).

milli

An SI prefix denoted by the symbol $m$, representing a factor of $0.001 = 10^{-3}$ (for example, $1\text{ millimeter (mm)} = 10^{-3}\,\text{m}$).

micro

An SI prefix denoted by the symbol $\mu$, representing a factor of $0.000001 = 10^{-6}$ (for example, $1\text{ micrometer (}\mu\text{m)} = 10^{-6}\,\text{m}$).

nano

An SI prefix denoted by the symbol $n$, representing a factor of $0.000000001 = 10^{-9}$ (for example, $1\text{ nanometer (nm)} = 10^{-9}\,\text{m}$).

pico

An SI prefix denoted by the symbol $p$, representing a factor of $0.000000000001 = 10^{-12}$ (for example, $1\text{ picometer (pm)} = 10^{-12}\,\text{m}$).

hydroxide

A polyatomic ion with the formula $\text{OH}^-$

phosphate

A polyatomic ion with the formula $\text{PO}_4^{3-}$

nitrate

A polyatomic ion with the formula $\text{NO}_3^-$

cyanide

A polyatomic ion with the formula $\text{CN}^-$

sulfate

A polyatomic ion with the formula $\text{SO}_4^{2-}$

carbonate

A polyatomic ion with the formula $\text{CO}_3^{2-}$

ammonium

A polyatomic ion with the formula $\text{NH}_4^+$

acetate

A polyatomic ion with the formula $\text{CH}_3\text{COO}^-$