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Periodic table

Use the arrow keys to move between elements, Home and End to jump within a period, / to search, and C to add the focused element to compare.

118 elements

Period 1 · 2 elements

Period 2 · 8 elements

Period 3 · 8 elements

Period 4 · 18 elements

Period 5 · 18 elements

Period 6 · 32 elements

Period 7 · 32 elements

Element categories

1HHydrogen1.0082HeHelium4.0033LiLithium6.9404BeBeryllium9.0125BBoron10.8106CCarbon12.0117NNitrogen14.0078OOxygen15.9999FFluorine18.99810NeNeon20.18011NaSodium22.99012MgMagnesium24.30513AlAluminium26.98214SiSilicon28.08515PPhosphorus30.97416SSulfur32.06017ClChlorine35.45018ArArgon39.95019KPotassium39.09820CaCalcium40.07821ScScandium44.95622TiTitanium47.86723VVanadium50.94224CrChromium51.99625MnManganese54.93826FeIron55.84527CoCobalt58.93328NiNickel58.69329CuCopper63.54630ZnZinc65.38031GaGallium69.72332GeGermanium72.63033AsArsenic74.92234SeSelenium78.97135BrBromine79.90436KrKrypton83.79837RbRubidium85.46838SrStrontium87.62039YYttrium88.90640ZrZirconium91.22241NbNiobium92.90642MoMolybdenum95.95043TcTechnetium[97]44RuRuthenium101.07045RhRhodium102.91046PdPalladium106.42047AgSilver107.87048CdCadmium112.41049InIndium114.82050SnTin118.71051SbAntimony121.76052TeTellurium127.60053IIodine126.90054XeXenon131.29055CsCaesium132.91056BaBarium137.33072HfHafnium178.49073TaTantalum180.95074WTungsten183.84075ReRhenium186.21076OsOsmium190.23077IrIridium192.22078PtPlatinum195.08079AuGold196.97080HgMercury200.59081TlThallium204.38082PbLead207.20083BiBismuth208.98084PoPolonium[209]85AtAstatine[210]86RnRadon[222]87FrFrancium[223]88RaRadium[226]104RfRutherfordium[267]105DbDubnium[268]106SgSeaborgium[269]107BhBohrium[270]108HsHassium[269]109MtMeitnerium[277]110DsDarmstadtium[282]111RgRoentgenium[282]112CnCopernicium[286]113NhNihonium[286]114FlFlerovium[290]115McMoscovium[290]116LvLivermorium[293]117TsTennessine[294]118OgOganesson[295]57–7189–103Lanthanides, period 6Actinides, period 757LaLanthanum138.91058CeCerium140.12059PrPraseodymium140.91060NdNeodymium144.24061PmPromethium[145]62SmSamarium150.36063EuEuropium151.96064GdGadolinium157.25065TbTerbium158.93066DyDysprosium162.50067HoHolmium164.93068ErErbium167.26069TmThulium168.93070YbYtterbium173.05071LuLutetium174.97089AcActinium[227]90ThThorium232.04091PaProtactinium231.04092UUranium238.03093NpNeptunium[237]94PuPlutonium[244]95AmAmericium[243]96CmCurium[247]97BkBerkelium[247]98CfCalifornium[251]99EsEinsteinium[252]100FmFermium[257]101MdMendelevium[258]102NoNobelium[259]103LrLawrencium[266]

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