Periodic Table of Elements

Sorted by 1st Ionization Potential (eV)

NameSym#
3.83FranciumFr87
3.894CesiumCs55
4.177RubidiumRb37
4.341PotassiumK19
5.139SodiumNa11
5.17ActiniumAc89
5.212BariumBa56
5.279RadiumRa88
5.392LithiumLi3
5.4259LutetiumLu71
5.46PraseodymiumPr59
5.53NeodymiumNd60
5.54CeriumCe58
5.554PromethiumPm61
5.58LanthanumLa57
5.64SamariumSm62
5.67EuropiumEu63
5.695StrontiumSr38
5.786IndiumIn49
5.86TerbiumTb65
5.89ProtactiniumPa91
5.94DysprosiumDy66
5.986AluminumAl13
5.993AmericiumAm95
5.999GalliumGa31
6.018HolmiumHo67
6.02CuriumCm96
6.05UraniumU92
6.06PlutoniumPu94
6.08ThoriumTh90
6.101ErbiumEr68
6.108ThalliumTl81
6.113CalciumCa20
6.15GadoliniumGd64
6.184ThuliumTm69
6.19NeptuniumNp93
6.23BerkeliumBk97
6.254YtterbiumYb70
6.3CaliforniumCf98
6.38YttriumY39
6.42EinsteiniumEs99
6.5FermiumFm100
6.54ScandiumSc21
6.58MendeleviumMd101
6.65HafniumHf72
6.65NobeliumNo102
6.74VanadiumV23
6.766ChromiumCr24
6.82TitaniumTi22
6.84ZirconiumZr40
6.88NiobiumNb41
7.099MolybdenumMo42
7.28TechnetiumTc43
7.289BismuthBi83
7.344TinSn50
7.37RutheniumRu44
7.416LeadPb82
7.435ManganeseMn25
7.46RhodiumRh45
7.576SilverAg47
7.635NickelNi28
7.646MagnesiumMg12
7.726CopperCu29
7.86CobaltCo27
7.87IronFe26
7.88RheniumRe75
7.89TantalumTa73
7.899GermaniumGe32
7.98TungstenW74
8.151SiliconSi14
8.298BoronB5
8.34PalladiumPd46
8.42PoloniumPo84
8.641AntimonySb51
8.7OsmiumOs76
8.993CadmiumCd48
9PlatinumPt78
9.009TelluriumTe52
9.1IridiumIr77
9.225GoldAu79
9.322BerylliumBe4
9.394ZincZn30
9.65AstatineAt85
9.752SeleniumSe34
9.81ArsenicAs33
10.36SulfurS16
10.437MercuryHg80
10.451IodineI53
10.486PhosphorusP15
10.748RadonRn86
11.26CarbonC6
11.814BromineBr35
12.13XenonXe54
12.967ChlorineCl17
13.598HydrogenH1
13.618OxygenO8
13.999KryptonKr36
14.534NitrogenN7
15.759ArgonAr18
17.422FluorineF9
21.564NeonNe10
24.587HeliumHe2

[Last Updated: 2/22/2007]

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