Atomic Number vs 1st Ionization Energy

Element1st Ionization Energy (kJ/mol)Atomic Number
Hydrogen13121
Helium23772
Lithium5203
Beryllium8994
Boron8015
Carbon10866
Nitrogen14207
Oxygen13148
Fluorine16819
Neon208810
Sodium49511
Magnesium73512
Aluminium58013
Silicon78014
Phosphorus106015
Sulfur100516
Chlorine125517
Argon152718
Potassium41919
Calcium59020
Scandium63321
Titanium65922
Vanadium65123
Chromium65324
Manganese71725
Iron76326
Cobalt76127
Nickel73728
Copper74629
Zinc90630
Gallium57931
Germanium76232
Arsenic94733
Selenium94134
Bromine114035
Krypton135636
Rubidium40937
Strontium55038
Yttrium60039
Zirconium64040
Niobium65241
Molybdenum68442
Technetium70243
Ruthenium71044
Rhodium72045
Palladium80446
Silver73147
Cadmium86848
Indium55849
Tin70950
Antimony83451
Tellurium86952
Iodine100853
Xenon117654
Cesium38255
Barium50856
Lanthanum53857
Cerium53458
Praseodymium52759
Neodymium53360
Promethium54061
Samarium54562
Europium54763
Gadolinium59364
Terbium56665
Dysprosium57366
Holmium58167
Erbium58968
Thulium59769
Ytterbium60370
Lutetium52471
Hafnium65972
Tantalum76173
Tungsten77074
Rhenium76075
Osmium84076
Iridium88077
Platinum87078
Gold89079
Mercury100780
Thallium58981
Lead72382
Bismuth71183
Polonium82184
Astatine92085
Radon104286
Francium38087
Radium50988
Actinium49989
Thorium58790
Protactinium56891
Uranium59892
Neptunium60593
Plutonium58594
Americium57895
Curium58196
Berkelium60197
Californium60898
Einsteinium61999
Fermium627100
Mendelevium635101
Nobelium642102
LawrenciumN/A103
RutherfordiumN/A104
DubniumN/A105
SeaborgiumN/A106
BohriumN/A107
HassiumN/A108
MeitneriumN/A109
DarmstadtiumN/A110
RoentgeniumN/A111
CoperniciumN/A112
NihoniumN/A113
FleroviumN/A114
MoscoviumN/A115
LivermoriumN/A116
TennessineN/A117
OganessonN/A118