118 Elements of The Periodic Table, Symbols, Atomic Numbers

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Editorial Staff

Last updated on September 10th, 2024

This page contains the list of the Chemical elements identified and named by the International Union of Pure and Applied Chemistry. IUPAC is registered in Zürich, Switzerland, and the administrative office, known as the “IUPAC Secretariat”, is in Research Triangle Park, North Carolina, United States.

Below is a list of 118 elements with their symbol, atomic number, atomic weight, year of discovery. Hope this proves useful to you. Thank you!

Atomic numberElementSymbolAtomic weightYear discoveredNotes
1.HydrogenH1.00791766Classified as a nonmetal, Hydrogen is a gas at room temperature.
2.HeliumHe4.00261868Classified as a noble gas, Helium is a gas at room temperature.
3.LithiumLi6.938 1817Classified as an alkali metal, Lithium is a solid at room temperature.
4.BeryliumBe9.012181798Classified as an alkaline earth metal, Beryllium is a solid at room temperature.
5.BoronBo10.8061808Classified as a metalloid, Boron is a solid at room temperature.
6.CarbonC12.00963750 BCClassified as a nonmetal, Carbon is a solid at room temperature.
7.NitrogenN14.00641772Classified as a nonmetal, Nitrogen is a gas at room temperature.
8.OxygenO15.9991771Classified as a nonmetal, Oxygen is a gas at room temperature.
9.FluorineF18.99841810Classified as a halogen, Fluorine is a gas at room temperature.
10.NeonNe20.17971898Classified as a noble gas, Neon is a gas at room temperature.
11.SodiumNa22.98981807Classified as an alkali metal, Sodium is a solid at room temperature.
12.MagnesiumMg24.3041755Classified as an alkaline earth metal, Magnesium is a solid at room temperature.
13.AluminiumAl26.98151825Classified as a post-transition metal, Aluminum is a solid at room temperature.
14.SiliconSi28.084 1823Classified as a metalloid, Silicon is a solid at room temperature.
15.PhosphorusP30.97381669Classified as a nonmetal, Phosphorus is a solid at room temperature.
16.SulfurS32.0592000 BCClassified as a nonmetal, Sulfur is a solid at room temperature.
17.ChlorineCl35.4461774Classified as a halogen, Chlorine is a gas at room temperature.
18.ArgonAr39.7921894Classified as a noble gas, Argon is a gas at room temperature.
19.PotassiumK39.09831807Classified as an alkali metal, Potassium is a solid at room temperature.
20.CalciumCa40.07841808Classified as an alkaline earth metal, Calcium is a solid at room temperature.
21.ScandiumSc44.95591879Classified as a transition metal, Scandium is a solid at room temperature.
22.TitaniumTi47.86711791Classified as a transition metal, Titanium is a solid at room temperature.
23.VanadiumV50.94151801Classified as a transition metal, Vanadium is a solid at room temperature.
24.ChromiumCr51.99621794Classified as a transition metal, Chromium is a solid at room temperature.
25.ManganeseMn54.9381774Classified as a transition metal, Manganese is a solid at room temperature.
26.IronFe55.84525000 BCClassified as a transition metal, Iron is a solid at room temperature.
27.CobaltCo58.93321734Classified as a transition metal, Cobalt is a solid at room temperature.
28.NickelNi58.69341751Classified as a transition metal, Nickel is a solid at room temperature.
29.CopperCu63.54639000 BCClassified as a transition metal, Copper is a solid at room temperature.
30.ZincZn65.3821000 BCClassified as a transition metal, Zinc is a solid at room temperature.
31.Gallium Ga69.72311875Classified as a post-transition metal, Gallium is a solid at room temperature.
32.GermaniumGe72.63081886Classified as a metalloid, Germanium is a solid at room temperature.
33.ArsenicAs74.9216815Classified as a metalloid, Arsenic is a solid at room temperature.
34.SeleniumSe78.97181817Classified as a nonmetal, Selenium is a solid at room temperature.
35.BromineBr79.9011825Classified as a halogen, Bromine is a liquid at room temperature.
36.KryptonKr83.79821898Classified as a noble gas, Krypton is a gas at room temperature.
37.RubidiumRb85.46781861Classified as an alkali metal, Rubidium is a solid at room temperature.
38.StrontiumSr87.6211787Classified as an alkaline earth metal, Strontium is a solid at room temperature.
39.YttriumY88.90581794Classified as a transition metal, Yttrium is a solid at room temperature.
40.ZirconiumZr91.22421789Classified as a transition metal, Zirconium is a solid at room temperature.
41.NiobiumNb92.90641801Classified as a transition metal, Niobium is a solid at room temperature.
42.MolybdenumMo95.9511778Classified as a transition metal, Molybdenum is a solid at room temperature.
43.TechnetiumTc98.90621937Classified as a transition metal, Technetium is a solid at room temperature.
44.RutheniumRu101.0721844Classified as a transition metal, Ruthenium is a solid at room temperature.
45.RhodiumRh102.9061804Classified as a transition metal, Rhodium is a solid at room temperature.
46.PalladiumPd106.4211802Classified as a transition metal, Palladium is a solid at room temperature.
47.SilverAg107.8685000 BCClassified as a transition metal, Silver is a solid at room temperature.
48.CadmiumCd112.4141817Classified as a transition metal, Cadmium is a solid at room temperature.
49.IndiumIn114.8181863Classified as a post-transition metal, Indium is a solid at room temperature.
50.TinSn118.7113500 BCClassified as a post-transition metal, Tin is a solid at room temperature.
51.AntimonySb121.76815Classified as a metalloid, Antimony is a solid at room temperature.
52.TelluriumTe127.603782Classified as a metalloid, Tellurium is a solid at room temperature.
53.IodineI126.9041811Classified as a halogen, Iodine is a solid at room temperature.
54.XenonXe131.2941898Classified as a noble gas, Xenon is a gas at room temperature.
55.CesiumCs132.9051860Classified as an alkali metal, Cesium is a solid at room temperature.
56.BariumBa137.3281772Classified as an alkaline earth metal, Barium is a solid at room temperature.
57.LanthanumLa138.9051838Classified as a lanthanide, Lanthanum is a solid at room temperature.
58.CeriumCe140.1161803Classified as a lanthanide, Cerium is a solid at room temperature.
59.PraseodymiumPr140.9081885Classified as a lanthanide, Praseodymium is a solid at room temperature.
60.NeodymiumNd144.2421885Classified as a lanthanide, Neodymium is a solid at room temperature.
61.PromethiumPm1451942Classified as a lanthanide, Promethium is a solid at room temperature.
62.SamariumSm150.3621879Classified as a lanthanide, Samarium is a solid at room temperature.
63.EuropiumEu151.9641896Classified as a lanthanide, Europium is a solid at room temperature.
64.GadoliniumGd157.2531880Classified as a lanthanide, Gadolinium is a solid at room temperature.
65.TerbiumTb158.9251843Classified as a lanthanide, Terbium is a solid at room temperature.
66.DysprosiumDy162.51886Classified as a lanthanide, Dysprosium is a solid at room temperature.
67.HolmiumHo164.931878Classified as a lanthanide, Holmium is a solid at room temperature.
68.ErbiumEr167.2591843Classified as a lanthanide, Erbium is a solid at room temperature.
69.ThuliumTm168.9341879Classified as a lanthanide, Thulium is a solid at room temperature.
70.YtterbiumYb173.0451878Classified as a lanthanide, Ytterbium is a solid at room temperature.
71.LutetiumLu174.9671906Classified as a lanthanide, Lutetium is a solid at room temperature.
72.HafniumHf178.4921922Classified as a transition metal, Hafnium is a solid at room temperature.
73.TantalumTa180.9481802Classified as a transition metal, Tantalum is a solid at room temperature.
74.TungstenW183.8411781Classified as a transition metal, Tungsten is a solid at room temperature.
75.RheniumRe186.2071908Classified as a transition metal, Rhenium is a solid at room temperature.
76.OsmiumOs190.2331803Classified as a transition metal, Osmium is a solid at room temperature.
77.IridiumIr192.2171803Classified as a transition metal, Iridium is a solid at room temperature.
78.PlatinumPt195.0851735Classified as a transition metal, Platinum is a solid at room temperature.
79.GoldAu196.9676000 BCClassified as a transition metal, Gold is a solid at room temperature.
80.MercuryHg200.5921500 BCClassified as a transition metal, Mercury is a liquid at room temperature.
81.ThalliumTl204.3821861Classified as a post-transition metal, Thallium is a solid at room temperature.
82.LeadPb207.217000 BCClassified as a post-transition metal, Lead is a solid at room temperature.
83.BismuthBi208.981000Classified as a post-transition metal, Bismuth is a solid at room temperature.
84.PoloniumPo2091898Classified as a metalloid, Polonium is a solid at room temperature.
85.AstatineAt2101940Classified as a halogen, Astatine is a solid at room temperature.
86.RadonRn2221899Classified as a noble gas, Radon is a gas at room temperature.
87.FranciumFr2231939Classified as an alkali metal, Francium is a solid at room temperature.
88.RadiumRa2261898Classified as an alkaline earth metal, Radium is a solid at room temperature.
89.ActiniumAc2271902Classified as an actinide, Actinium is a solid at room temperature.
90.ThoriumTh232.0381829Classified as an actinide, Thorium is a solid at room temperature.
91.ProtactiniumPa231.0361913Classified as an actinide, Protactinium is a solid at room temperature.
92.UraniumU238.0291789Classified as an actinide, Uranium is a solid at room temperature.
93.NeptuniumNp2371940Classified as an actinide, Neptunium is a solid at room temperature.
94.PlutoniumPu2441940Classified as an actinide, Plutonium is a solid at room temperature.
95.AmericiumAm2431944Classified as an actinide, Americium is a solid at room temperature.
96.CuriumCm2471944Classified as an actinide, Curium is a solid at room temperature.
97.BerkeliumBk2471949Classified as an actinide, Berkelium is a solid at room temperature.
98.CaliforniumCf2511950Classified as an actinide, Californium is a solid at room temperature.
99.EinsteiniumEs2521952Classified as an actinide, Einsteinium is a solid at room temperature.
100.FermiumFm2571952Classified as an actinide, Fermium is a solid at room temperature.
101.MendeleviumMd2581955Classified as an actinide, Mendelevium is a solid at room temperature.
102.NobeliumNo2591966Classified as an actinide, Nobelium is a solid at room temperature.
103.LawrenciumLr2621961Classified as an actinide, Lawrencium is a solid at room temperature.
104.RutherfordiumRf2611969
105.DubniumDb2681970
106.SeaborgiumSg2691974
107.BohriumBh270.1331981
108.HassiumHs2691984
109.MeitneriumMt277.1541982
110.DarmstadtiumDs2811994
111.RoentgeniumRg2811994
112.CoperniciumCn2851996
113.NihoniumNh2862003
114.FleroviumFl2891999
115.MoscoviumMc2882003
116.LivermoriumLv2932000
117.TennessineTs2942009
118.OganessonOg2942002
Table last updatedAugust 17, 2024