Free chemistry reference tools

Periodic Table with Charges

Look up common ionic charges, use a charge-aware periodic table, and jump into element charge pages built for chemistry homework and printable reference.

A periodic table with charges shows the most common ionic charges or oxidation states for each element. Use it to write ionic formulas and check common ions.

Open the table Printable PDF page Ionic formula tool

Search element charge

Element charge result

Sodium usually forms Na+

Symbol: Na
Common ionic charges: +1
Common ions: Na+

Sodium is an alkali metal, so it commonly loses one electron and forms a +1 ion.

Interactive reference

Common charges by element

Click common elements to open their charge pages.

1HHydrogen+1, -1 2HeHeliumno common simple ion 3LiLithium+1 4BeBeryllium+2 5BBoron+3 6CCarbon-4, +4 7NNitrogen-3, +3, +5 8OOxygen-2 9FFluorine-1 10NeNeonno common simple ion 11NaSodium+1 12MgMagnesium+2 13AlAluminum+3 14SiSilicon-4, +4 15PPhosphorus-3, +3, +5 16SSulfur-2, +4, +6 17ClChlorine-1, +1, +5, +7 18ArArgonno common simple ion 19KPotassium+1 20CaCalcium+2 21ScScandium+3 22TiTitanium+3, +4 23VVanadium+2, +3, +4, +5 24CrChromium+2, +3, +6 25MnManganese+2, +4, +7 26FeIron+2, +3 27CoCobalt+2, +3 28NiNickel+2, +3 29CuCopper+1, +2 30ZnZinc+2 31GaGallium+3 32GeGermanium+2, +4 33AsArsenic-3, +3, +5 34SeSelenium-2, +4, +6 35BrBromine-1, +1, +5 36KrKryptonno common simple ion 37RbRubidium+1 38SrStrontium+2 39YYttrium+3 40ZrZirconium+4 41NbNiobium+3, +5 42MoMolybdenum+4, +6 43TcTechnetium+4, +7 44RuRuthenium+3, +4 45RhRhodium+3 46PdPalladium+2, +4 47AgSilver+1 48CdCadmium+2 49InIndium+1, +3 50SnTin+2, +4 51SbAntimony-3, +3, +5 52TeTellurium-2, +4, +6 53IIodine-1, +1, +5, +7 54XeXenonno common simple ion 55CsCesium+1 56BaBarium+2 57LaLanthanum+3 58CeCerium+3, +4 59PrPraseodymium+3, +4 60NdNeodymium+3 61PmPromethium+3 62SmSamarium+2, +3 63EuEuropium+2, +3 64GdGadolinium+3 65TbTerbium+3, +4 66DyDysprosium+3 67HoHolmium+3 68ErErbium+3 69TmThulium+3 70YbYtterbium+2, +3 71LuLutetium+3 72HfHafnium+4 73TaTantalum+5 74WTungsten+4, +6 75ReRhenium+4, +7 76OsOsmium+3, +4 77IrIridium+3, +4 78PtPlatinum+2, +4 79AuGold+1, +3 80HgMercury+1, +2 81TlThallium+1, +3 82PbLead+2, +4 83BiBismuth+3, +5 84PoPolonium+2, +4 85AtAstatine-1, +1 86RnRadonno common simple ion 87FrFrancium+1 88RaRadium+2 89AcActinium+3 90ThThorium+4 91PaProtactinium+4, +5 92UUranium+4, +6 93NpNeptunium+3, +4, +5, +6 94PuPlutonium+3, +4, +5, +6 95AmAmericium+3 96CmCurium+3 97BkBerkelium+3, +4 98CfCalifornium+3 99EsEinsteinium+3 100FmFermium+3 101MdMendelevium+2, +3 102NoNobelium+2, +3 103LrLawrencium+3 104RfRutherfordium+4 105DbDubnium+5 106SgSeaborgium+6 107BhBohrium+7 108HsHassium+8 109MtMeitneriumno common simple ion 110DsDarmstadtiumno common simple ion 111RgRoentgeniumno common simple ion 112CnCoperniciumno common simple ion 113NhNihonium+1, +3 114FlFlerovium+2, +4 115McMoscoviumno common simple ion 116LvLivermoriumno common simple ion 117TsTennessineno common simple ion 118OgOganessonno common simple ion

Alkali metals Alkaline earth metals Transition metals Halogens Nonmetals Noble gases Lanthanides Actinides

Related chemistry tools

Printable periodic table with chargesPDF-style landing page for downloads and classroom printing.Ionic charges chartCommon charges for elements and simple ions.Polyatomic ions chartCommon formulas and charges for nitrate, sulfate, carbonate, phosphate, and more.Ionic compound calculatorBalance common ionic charges into formulas.Chemical formula calculatorCount atoms and estimate molar mass from a formula.Oxidation number calculatorRule-based oxidation number estimates for common formulas and ions.Ionic compounds worksheetPrintable practice resource with answer key.How to find the charge of an elementA quick guide for using group numbers and common exceptions.