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Monoatomic and Polyatomic Ions: A Comprehensive List, Lecture notes of Chemistry

A comprehensive list of monoatomic and polyatomic ions, including their old and new names, formulas, and names. It serves as a valuable resource for students and researchers in the fields of chemistry and biology.

Typology: Lecture notes

2021/2022

Uploaded on 09/12/2022

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Monoatomic ions you should know
Ion
Name
Ion
Old Name
New Name
H+
hydrogen ion /proton
Cr2+
chromous ion
chromium(II) ion
Li+
lithium ion
Cr3+
chromic ion
chromium(III) ion
Na+
sodium ion
Mn2+
manganous ion
manganese(II) ion
K+
potassium ion
Mn3+
manganic ion
manganese(III) ion
Rb+
rubidium ion
Fe2+
ferrous ion
iron(II) ion
Cs+
cesium ion
Fe3+
ferric ion
iron(III) ion
Be2+
beryllium ion
Co2+
cobaltous ion
cobalt(II) ion
Mg2+
magnesium ion
Co3+
cobaltic ion
cobalt(III) ion
Ca2+
calcium ion
Ni2+
nickel(II) ion
Sr2+
strontium ion
Ni3+
nickel(III) ion
Ba2+
barium ion
Cu+
cuprous ion
copper(I) ion
Ag+
silver ion
Cu2+
cupric ion
copper(II) ion
Zn2+
zinc ion
Au+
aurous ion
gold(I) ion
Cd2+
cadmium ion
Au3+
auric ion
gold(III) ion
B3+
boron ion
Hg+ (Hg22+)
mercurous ion
mercury(I) ion
Al3+
aluminum ion
Hg2+
mercuric ion
mercury(II) ion
Ga3+
gallium ion
Tl+
thallium(I) ion
C4-
carbide ion
Tl3+
thallium(III) ion
N3-
nitride ion
Sn2+
stannous ion
tin(II) ion
P3-
phosphide ion
Sn4+
stannic ion
tin(IV) ion
As3-
arsenide ion
Pb2+
plumbous ion
lead(II) ion
O2-
oxide ion
Pb4+
plumbic ion
lead(IV) ion
S2-
sulfide ion
As3+
arsenic(III) ion
Se2-
selenide ion
As5+
arsenic(V) ion
H-
hydride ion
F-
fluoride ion
Cl-
chloride ion
Br-
bromide ion
I-
iodide ion
pf2

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Monoatomic ions you should know

Ion Name Ion Old Name New Name H+^ hydrogen ion /proton Cr2+^ chromous ion chromium(II) ion Li+^ lithium ion Cr3+^ chromic ion chromium(III) ion Na+^ sodium ion Mn2+^ manganous ion manganese(II) ion K+^ potassium ion Mn3+^ manganic ion manganese(III) ion Rb+^ rubidium ion Fe2+^ ferrous ion iron(II) ion Cs+^ cesium ion Fe3+^ ferric ion iron(III) ion Be2+^ beryllium ion Co2+^ cobaltous ion cobalt(II) ion Mg2+^ magnesium ion Co3+^ cobaltic ion cobalt(III) ion Ca2+^ calcium ion Ni2+^ nickel(II) ion Sr2+^ strontium ion Ni3+^ nickel(III) ion Ba2+^ barium ion Cu+^ cuprous ion copper(I) ion Ag+^ silver ion Cu2+^ cupric ion copper(II) ion Zn2+^ zinc ion Au+^ aurous ion gold(I) ion Cd2+^ cadmium ion Au3+^ auric ion gold(III) ion B3+^ boron ion Hg+^ (Hg 2 2+) mercurous ion mercury(I) ion Al3+^ aluminum ion Hg2+^ mercuric ion mercury(II) ion Ga3+^ gallium ion Tl+^ thallium(I) ion C^4 -^ carbide ion Tl3+^ thallium(III) ion N^3 -^ nitride ion Sn2+^ stannous ion tin(II) ion P^3 -^ phosphide ion Sn4+^ stannic ion tin(IV) ion As^3 -^ arsenide ion Pb2+^ plumbous ion lead(II) ion O^2 -^ oxide ion Pb4+^ plumbic ion lead(IV) ion S^2 -^ sulfide ion As3+^ arsenic(III) ion Se^2 -^ selenide ion As5+^ arsenic(V) ion H-^ hydride ion F-^ fluoride ion Cl-^ chloride ion Br-^ bromide ion I-^ iodide ion

Polyatomic ions that you should know

Formula Name Formula Name C 2 H 3 O 2 -^ acetate ion CO 32 -^ carbonate ion NH 4 +^ ammonium ion HCO 3 -^ bicarbonate ion N 3 -^ azide ion PO 33 -^ phosphite ion BO 33 -^ borate ion SO 42 -^ sulfate ion CrO 42 -^ chromate ion HSO 4 -^ bisulfate ion Cr 2 O 72 -^ dichromate ion SO 32 -^ sulfite ion OCN-^ cyanate ion HSO 3 -^ bisulfite ion SCN-^ thiocyanate ion ClO 4 -^ perchlorate ion CN-^ cyanide ion ClO 3 -^ chlorate ion HO-^ hydroxide ion ClO 2 -^ chlorite ion C 2 O 42 -^ oxalate ion ClO-^ hypochlorite ion MnO 4 -^ permanganate ion BrO 4 -^ perbromate ion O 22 -^ peroxide ion BrO 3 -^ bromate ion O 2 -^ superoxide ion BrO 2 -^ bromite ion S 2 O 32 -^ thiosulfate ion BrO-^ hypobromite ion NO 3 -^ nitrate ion IO 4 -^ periodate ion NO 2 -^ nitrite ion IO 3 -^ iodate ion PO 43 -^ phosphate ion HPO 4 2 - hydrogen phosphate ion H 2 PO 4 -^ dihydrogen phosphate ion