Chemical Element Symbols and Polyatomic Ions

Vocabulary practice flashcards covering elemental symbols, Latin root names, common polyatomic ion formulas, and naming patterns.

Hydrogen

Chemical element represented by the symbol $H$.

Helium

Chemical element represented by the symbol $He$.

Lithium

Chemical element represented by the symbol $Li$.

Boron

Chemical element represented by the symbol $B$.

Carbon

Chemical element represented by the symbol $C$.

Nitrogen

Chemical element represented by the symbol $N$.

Oxygen

Chemical element represented by the symbol $O$.

Fluorine

Chemical element represented by the symbol $F$.

Neon

Chemical element represented by the symbol $Ne$.

Sodium

Chemical element represented by the symbol $Na$ (Latin name: Natrium).

Magnesium

Chemical element represented by the symbol $Mg$.

Aluminum

Chemical element represented by the symbol $Al$.

Silicon

Chemical element represented by the symbol $Si$.

Phosphorus

Chemical element represented by the symbol $P$.

Sulfur

Chemical element represented by the symbol $S$.

Chlorine

Chemical element represented by the symbol $Cl$.

Potassium

Chemical element represented by the symbol $K$ (Latin name: Kalium).

Calcium

Chemical element represented by the symbol $Ca$.

Chromium

Chemical element represented by the symbol $Cr$.

Manganese

Chemical element represented by the symbol $Mn$.

Iron

Chemical element represented by the symbol $Fe$ (Latin name: Ferrum).

Cobalt

Chemical element represented by the symbol $Co$.

Nickel

Chemical element represented by the symbol $Ni$.

Copper

Chemical element represented by the symbol $Cu$ (Latin name: Cuprum).

Zinc

Chemical element represented by the symbol $Zn$.

Arsenic

Chemical element represented by the symbol $As$.

Selenium

Chemical element represented by the symbol $Se$.

Bromine

Chemical element represented by the symbol $Br$.

Strontium

Chemical element represented by the symbol $Sr$.

Molybdenum

Chemical element represented by the symbol $Mo$.

Silver

Chemical element represented by the symbol $Ag$ (Latin name: Argentum).

Iodine

Chemical element represented by the symbol $I$.

Barium

Chemical element represented by the symbol $Ba$.

Platinum

Chemical element represented by the symbol $Pt$.

Gold

Chemical element represented by the symbol $Au$ (Latin name: Aurum).

Mercury

Chemical element represented by the symbol $Hg$ (Latin name: Hydragyrum - 'liquid silver').

Lead

Chemical element represented by the symbol $Pb$ (Latin name: Plumbum).

Radon

Chemical element represented by the symbol $Rn$.

Uranium

Chemical element represented by the symbol $U$.

Plutonium

Chemical element represented by the symbol $Pu$.

Tin

Chemical element represented by the symbol $Sn$ (Latin name: Stannum).

Carbonate

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

Hydrogen carbonate

A polyatomic ion of carbon with the formula $HCO_3^{-1}$.

Acetate

A polyatomic ion of carbon with the formula $C_2H_3O_2^{-1}$ or $CH_3CO_2^{-1}$.

Cyanide

A polyatomic ion of carbon with the formula $CN^{-1}$.

Oxalate

A polyatomic ion of carbon with the formula $C_2O_4^{-2}$.

Nitrate

A polyatomic ion of nitrogen with the formula $NO_3^{-1}$.

Nitrite

A polyatomic ion of nitrogen with the formula $NO_2^{-1}$.

Ammonium

A positively charged polyatomic ion of nitrogen with the formula $NH_4^{+}$, derived from ammonia ($NH_3$).

Hydroxide

A polyatomic ion of oxygen with the formula $OH^{-1}$.

Hydronium

A positively charged polyatomic ion of oxygen with the formula $H_3O^{+}$, derived from water ($H_2O$).

Peroxide

A polyatomic ion of oxygen with the formula $O_2^{-2}$.

Phosphate

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

Hydrogen phosphate

A polyatomic ion of phosphorus with the formula $HPO_4^{-2}$.

Dihydrogen phosphate

A polyatomic ion of phosphorus with the formula $H_2PO_4^{-1}$.

Chromate

A polyatomic ion of chromium with the formula $CrO_4^{-2}$.

Dichromate

A polyatomic ion of chromium with the formula $Cr_2O_7^{-2}$.

Perchlorate

A polyatomic ion of chlorine with the formula $ClO_4^{-1}$.

Chlorate

A polyatomic ion of chlorine with the formula $ClO_3^{-1}$.

Chlorite

A polyatomic ion of chlorine with the formula $ClO_2^{-1}$.

Hypochlorite

A polyatomic ion of chlorine with the formula $ClO^{-1}$.

Borate

A polyatomic ion of boron with the formula $BO_3^{-3}$.

Sulfate

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

Sulfite

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

Hydrogen sulfate

A polyatomic ion of sulfur with the formula $HSO_4^{-1}$.

Hydrogen sulfite

A polyatomic ion of sulfur with the formula $HSO_3^{-1}$.

Thiosulfate

A polyatomic ion of sulfur with the formula $S_2O_3^{-2}$.

Permanganate

A polyatomic ion of manganese with the formula $MnO_4^{-1}$.

Positively Charged Polyatomic Ions

The only two ions on the list with positive charges: ammonium ($NH_4^{+}$) and hydronium ($H_3O^{+}$), which both share the suffix '-onium'.

Oxyanion Charge Pattern (No Hydrogen)

A rule stating that for a given nonmetal with no hydrogen present, only the number of oxygen atoms changes while the charge stays the same.