1. acetate CH3COO– TABLE OF POLYATOMIC IONS oxalate C2O42– PERIODIC TABLE OF IONS
arsenate AsO43– dihydrogen phosphate H2PO4 –
perchlorate ClO4 –
arsenite AsO33– hydrogen carbonate HCO3 – periodate IO4 – KEY ion
atomic
benzoate C6H5COO– hydrogen oxalate HC2O4 – permanganate MnO4 – 26 charge
–
number Fe3+
1 borate BO33– hydrogen sulfate HSO4 peroxide O22– iron (III) ion 17 18
bromate BrO3 – hydrogen sulfide HS– phosphate PO43– name
1
carbonate CO32– hydrogen sulfite HSO3 – pyrophosphate P2O74–
symbol Fe2+ (IUPAC) 1 2
H+ chlorate ClO3 – hydroxide OH– sulfate SO42–
iron (II) H- He
hydrogen 2 hydride helium
chloride Cl– hypochlorite ClO– sulfite SO32– 13 14 15 16
3 4 chlorite ClO2 – iodate IO3 – thiocyanate SCN– 5 6 7 8 9 10
Li+ Be2+ chromate CrO42– monohydrogen phosphate HPO42– thiosulfate S2O32– B C N3- O2- F- Ne
lithium beryllium cyanate CNO– nitrate NO3 – POSITIVE POLYATOMIC IONS boron carbon nitride oxide fluoride neon
11 12 cyanide CN– nitrite NO2 – ammonium NH4+ 13 14 15 16 17 18
dichromate Cr2O72– orthosilicate SiO44– hydronium H3O+
Na+ Mg2+ Al3+ Si P3- S2- Cl- Ar
sodium magnesium 3 4 5 6 7 8 9 10 11 12 aluminum silicon phosphide sulfiide chloride argon
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
Ti4+ V3+ Cr3+ Mn2+ Fe3+ Co2+ Ni2+ Cu2+
K+ Ca2+ Sc3+ titanium (IV) vanadium(III) chromium (III) manganese(II) iron (III) cobalt (II) nickel (II) copper (II) Zn2+ Ga3+ Ge4+ As3- Se2- Br- Kr
potassium calcium scandium Ti3+ V5+ Cr2+ Mn4+ Fe2+ Co3+ Ni3+ Cu+ zinc gallium germanium arsenide selenide bromide krypton
titanium (III) vanadium (V) chromium (II) manganese(IV) iron (II) cobalt (III) nickel (III) copper (I)
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
Nb5+ Ru3+ Pd2+ Sn4+ Sb3+
Rb+ Sr2+ Y3+ Zr4+ niobium (V) Mo6+ Tc7+ ruthenium(III) Rh3+ paladium(II) Ag+ Cd2+ In3+ tin (IV) antimony(III) Te2- I- Xe
rubidium strontium yttrium zirconium Nb3+ molybdenum technetium Ru4+ rhodium Pd4+ silver cadmium indium Sn2+ Sb5+ telluride iodide xenon
niobium(III) ruthenium(IV) paladium(IV) tin (II) antimony(V)
55 56 57 72 73 74 75 76 77 78
Pt4+ 79 Au3+
80
Hg2+
81
Tl+
82
Pb2+
83
Bi3+ 84
Po2+
85 86
Cs+ Ba2+ La3+ Hf4+ Ta5+ W6+ Re7+ Os4+ Ir4+ platinum(IV) gold (III) mercury (II) thallium (I) lead (II) bismuth(III) polonium(II) At- Rn
cesium barium lanthanum hafnium tantalum tungsten rhenium osmium iridium Pt2+ Au+ Hg+ Tl3+ Pb4+ Bi5+ Po4+ astatide radon
platinum(II) gold (I) mercury (I) thallium(III) lead (IV) bismuth(V) polonium(IV)
87 88 89
Fr+ Ra2+ Ac3+
58 59 60 61 62 63 64 65 66 67 68 69 70 71
francium radium actinium Sm3+ Eu3+ Yb3+
Ce3+ Pr3+ Nd3+ Pm3+ samarium(III) europium (III) Gd3+ Tb3+ Dy3+ Ho3+ Er3+ Tm3+ ytterbium(III) Lu3+
cerium praseodymium neodymium promethium Sm2+ Eu2+ gadolinium terbium dysprosium holmium erbium thulium Yb3+ lutetium
samarium(II) europium (II) ytterbium(II)
90 91
Pa5+ 92 U6+ 93 94
Pu4+ 95 Am3+ 96 97
Bk3+ 98 3+
4+ protactinium(V) uranium (VI) Np5+ plutonium(IV) americium(III) Cm3+ berkelium(III)
99
3+
100 101
Md2+ 102 No2+ 103 3+
3+ mendelevium (II) nobelium(II)
Th Cf Es Fm Lr
thorium Pa4+ U4+ neptunium Pu6+ Am4+ curium Bk4+ californium einsteinium fermium Md3+ No3+ lawrencium
protactinium(IV) uranium (IV) plutonium(VI) americium(IV) berkelium(IV) mendelevium (III) nobelium(III)