The Periodic Table

The periodic table arranges all 118 known chemical elements by their atomic number (the number of protons in their atoms). Elements in the same vertical column (a "group") share chemical properties; elements in the same row (a "period") have the same number of electron shells.

Click any element to learn more about it. Hover an element to see its details.

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

Nonmetal
Noble gas
Alkali metal
Alkaline earth metal
Metalloid
Halogen
Post-transition metal
Transition metal
Lanthanide
Actinide

HydrogenElement 1 on the periodic table. Symbol: H. Category: Nonmetal.

HeliumElement 2 on the periodic table. Symbol: He. Category: Noble gas.

LithiumElement 3 on the periodic table. Symbol: Li. Category: Alkali metal.

BerylliumElement 4 on the periodic table. Symbol: Be. Category: Alkaline earth metal.

BoronElement 5 on the periodic table. Symbol: B. Category: Metalloid.

CarbonElement 6 on the periodic table. Symbol: C. Category: Nonmetal.

NitrogenElement 7 on the periodic table. Symbol: N. Category: Nonmetal.

OxygenElement 8 on the periodic table. Symbol: O. Category: Nonmetal.

FluorineElement 9 on the periodic table. Symbol: F. Category: Halogen.

NeonElement 10 on the periodic table. Symbol: Ne. Category: Noble gas.

SodiumElement 11 on the periodic table. Symbol: Na. Category: Alkali metal.

MagnesiumElement 12 on the periodic table. Symbol: Mg. Category: Alkaline earth metal.

AluminumElement 13 on the periodic table. Symbol: Al. Category: Post-transition metal.

SiliconElement 14 on the periodic table. Symbol: Si. Category: Metalloid.

PhosphorusElement 15 on the periodic table. Symbol: P. Category: Nonmetal.

SulfurElement 16 on the periodic table. Symbol: S. Category: Nonmetal.

ChlorineElement 17 on the periodic table. Symbol: Cl. Category: Halogen.

ArgonElement 18 on the periodic table. Symbol: Ar. Category: Noble gas.

PotassiumElement 19 on the periodic table. Symbol: K. Category: Alkali metal.

CalciumElement 20 on the periodic table. Symbol: Ca. Category: Alkaline earth metal.

ScandiumElement 21 on the periodic table. Symbol: Sc. Category: Transition metal.

TitaniumElement 22 on the periodic table. Symbol: Ti. Category: Transition metal.

VanadiumElement 23 on the periodic table. Symbol: V. Category: Transition metal.

ChromiumElement 24 on the periodic table. Symbol: Cr. Category: Transition metal.

ManganeseElement 25 on the periodic table. Symbol: Mn. Category: Transition metal.

IronElement 26 on the periodic table. Symbol: Fe. Category: Transition metal.

CobaltElement 27 on the periodic table. Symbol: Co. Category: Transition metal.

NickelElement 28 on the periodic table. Symbol: Ni. Category: Transition metal.

CopperElement 29 on the periodic table. Symbol: Cu. Category: Transition metal.

ZincElement 30 on the periodic table. Symbol: Zn. Category: Transition metal.

GalliumElement 31 on the periodic table. Symbol: Ga. Category: Post-transition metal.

GermaniumElement 32 on the periodic table. Symbol: Ge. Category: Metalloid.

ArsenicElement 33 on the periodic table. Symbol: As. Category: Metalloid.

SeleniumElement 34 on the periodic table. Symbol: Se. Category: Nonmetal.

BromineElement 35 on the periodic table. Symbol: Br. Category: Halogen.

KryptonElement 36 on the periodic table. Symbol: Kr. Category: Noble gas.

RubidiumElement 37 on the periodic table. Symbol: Rb. Category: Alkali metal.

StrontiumElement 38 on the periodic table. Symbol: Sr. Category: Alkaline earth metal.

YttriumElement 39 on the periodic table. Symbol: Y. Category: Transition metal.

ZirconiumElement 40 on the periodic table. Symbol: Zr. Category: Transition metal.

NiobiumElement 41 on the periodic table. Symbol: Nb. Category: Transition metal.

MolybdenumElement 42 on the periodic table. Symbol: Mo. Category: Transition metal.

TechnetiumElement 43 on the periodic table. Symbol: Tc. Category: Transition metal.

RutheniumElement 44 on the periodic table. Symbol: Ru. Category: Transition metal.

RhodiumElement 45 on the periodic table. Symbol: Rh. Category: Transition metal.

PalladiumElement 46 on the periodic table. Symbol: Pd. Category: Transition metal.

SilverElement 47 on the periodic table. Symbol: Ag. Category: Transition metal.

CadmiumElement 48 on the periodic table. Symbol: Cd. Category: Transition metal.

IndiumElement 49 on the periodic table. Symbol: In. Category: Post-transition metal.

TinElement 50 on the periodic table. Symbol: Sn. Category: Post-transition metal.

AntimonyElement 51 on the periodic table. Symbol: Sb. Category: Metalloid.

TelluriumElement 52 on the periodic table. Symbol: Te. Category: Metalloid.

IodineElement 53 on the periodic table. Symbol: I. Category: Halogen.

XenonElement 54 on the periodic table. Symbol: Xe. Category: Noble gas.

CesiumElement 55 on the periodic table. Symbol: Cs. Category: Alkali metal.

BariumElement 56 on the periodic table. Symbol: Ba. Category: Alkaline earth metal.

LanthanumElement 57 on the periodic table. Symbol: La. Category: Lanthanide.

CeriumElement 58 on the periodic table. Symbol: Ce. Category: Lanthanide.

PraseodymiumElement 59 on the periodic table. Symbol: Pr. Category: Lanthanide.

NeodymiumElement 60 on the periodic table. Symbol: Nd. Category: Lanthanide.

PromethiumElement 61 on the periodic table. Symbol: Pm. Category: Lanthanide.

SamariumElement 62 on the periodic table. Symbol: Sm. Category: Lanthanide.

EuropiumElement 63 on the periodic table. Symbol: Eu. Category: Lanthanide.

GadoliniumElement 64 on the periodic table. Symbol: Gd. Category: Lanthanide.

TerbiumElement 65 on the periodic table. Symbol: Tb. Category: Lanthanide.

DysprosiumElement 66 on the periodic table. Symbol: Dy. Category: Lanthanide.

HolmiumElement 67 on the periodic table. Symbol: Ho. Category: Lanthanide.

ErbiumElement 68 on the periodic table. Symbol: Er. Category: Lanthanide.

ThuliumElement 69 on the periodic table. Symbol: Tm. Category: Lanthanide.

YtterbiumElement 70 on the periodic table. Symbol: Yb. Category: Lanthanide.

LutetiumElement 71 on the periodic table. Symbol: Lu. Category: Lanthanide.

HafniumElement 72 on the periodic table. Symbol: Hf. Category: Transition metal.

TantalumElement 73 on the periodic table. Symbol: Ta. Category: Transition metal.

TungstenElement 74 on the periodic table. Symbol: W. Category: Transition metal.

RheniumElement 75 on the periodic table. Symbol: Re. Category: Transition metal.

OsmiumElement 76 on the periodic table. Symbol: Os. Category: Transition metal.

IridiumElement 77 on the periodic table. Symbol: Ir. Category: Transition metal.

PlatinumElement 78 on the periodic table. Symbol: Pt. Category: Transition metal.

GoldElement 79 on the periodic table. Symbol: Au. Category: Transition metal.

MercuryElement 80 on the periodic table. Symbol: Hg. Category: Transition metal.

ThalliumElement 81 on the periodic table. Symbol: Tl. Category: Post-transition metal.

LeadElement 82 on the periodic table. Symbol: Pb. Category: Post-transition metal.

BismuthElement 83 on the periodic table. Symbol: Bi. Category: Post-transition metal.

PoloniumElement 84 on the periodic table. Symbol: Po. Category: Metalloid.

AstatineElement 85 on the periodic table. Symbol: At. Category: Halogen.

RadonElement 86 on the periodic table. Symbol: Rn. Category: Noble gas.

FranciumElement 87 on the periodic table. Symbol: Fr. Category: Alkali metal.

RadiumElement 88 on the periodic table. Symbol: Ra. Category: Alkaline earth metal.

ActiniumElement 89 on the periodic table. Symbol: Ac. Category: Actinide.

ThoriumElement 90 on the periodic table. Symbol: Th. Category: Actinide.

ProtactiniumElement 91 on the periodic table. Symbol: Pa. Category: Actinide.

UraniumElement 92 on the periodic table. Symbol: U. Category: Actinide.

NeptuniumElement 93 on the periodic table. Symbol: Np. Category: Actinide.

PlutoniumElement 94 on the periodic table. Symbol: Pu. Category: Actinide.

AmericiumElement 95 on the periodic table. Symbol: Am. Category: Actinide.

CuriumElement 96 on the periodic table. Symbol: Cm. Category: Actinide.

BerkeliumElement 97 on the periodic table. Symbol: Bk. Category: Actinide.

CaliforniumElement 98 on the periodic table. Symbol: Cf. Category: Actinide.

EinsteiniumElement 99 on the periodic table. Symbol: Es. Category: Actinide.

FermiumElement 100 on the periodic table. Symbol: Fm. Category: Actinide.

MendeleviumElement 101 on the periodic table. Symbol: Md. Category: Actinide.

NobeliumElement 102 on the periodic table. Symbol: No. Category: Actinide.

LawrenciumElement 103 on the periodic table. Symbol: Lr. Category: Actinide.

RutherfordiumElement 104 on the periodic table. Symbol: Rf. Category: Transition metal.

DubniumElement 105 on the periodic table. Symbol: Db. Category: Transition metal.

SeaborgiumElement 106 on the periodic table. Symbol: Sg. Category: Transition metal.

BohriumElement 107 on the periodic table. Symbol: Bh. Category: Transition metal.

HassiumElement 108 on the periodic table. Symbol: Hs. Category: Transition metal.

MeitneriumElement 109 on the periodic table. Symbol: Mt. Category: Transition metal.

DarmstadtiumElement 110 on the periodic table. Symbol: Ds. Category: Transition metal.

RoentgeniumElement 111 on the periodic table. Symbol: Rg. Category: Transition metal.

CoperniciumElement 112 on the periodic table. Symbol: Cn. Category: Transition metal.

NihoniumElement 113 on the periodic table. Symbol: Nh. Category: Post-transition metal.

FleroviumElement 114 on the periodic table. Symbol: Fl. Category: Post-transition metal.

MoscoviumElement 115 on the periodic table. Symbol: Mc. Category: Post-transition metal.

LivermoriumElement 116 on the periodic table. Symbol: Lv. Category: Post-transition metal.

TennessineElement 117 on the periodic table. Symbol: Ts. Category: Halogen.

OganessonElement 118 on the periodic table. Symbol: Og. Category: Noble gas.