Ionization Energies

Number Symbol Element Data
1 H Hydrogen 1312 kJ/mol
2 He Helium 2372 kJ/mol
3 Li Lithium 520 kJ/mol
4 Be Beryllium 900 kJ/mol
5 B Boron 801 kJ/mol
6 C Carbon 1086 kJ/mol
7 N Nitrogen 1402 kJ/mol
8 O Oxygen 1314 kJ/mol
9 F Fluorine 1681 kJ/mol
10 Ne Neon 2081 kJ/mol
11 Na Sodium 496 kJ/mol
12 Mg Magnesium 738 kJ/mol
13 Al Aluminum 577 kJ/mol
14 Si Silicon 786 kJ/mol
15 P Phosphorus 1012 kJ/mol
16 S Sulfur 999 kJ/mol
17 Cl Chlorine 1251 kJ/mol
18 Ar Argon 1521 kJ/mol
19 K Potassium 419 kJ/mol
20 Ca Calcium 590 kJ/mol
21 Sc Scandium 633 kJ/mol
22 Ti Titanium 659 kJ/mol
23 V Vanadium 651 kJ/mol
24 Cr Chromium 653 kJ/mol
25 Mn Manganese 717 kJ/mol
26 Fe Iron 762 kJ/mol
27 Co Cobalt 760 kJ/mol
28 Ni Nickel 737 kJ/mol
29 Cu Copper 746 kJ/mol
30 Zn Zinc 906 kJ/mol
31 Ga Gallium 578 kJ/mol
32 Ge Germanium 762 kJ/mol
33 As Arsenic 947 kJ/mol
34 Se Selenium 941 kJ/mol
35 Br Bromine 1140 kJ/mol
36 Kr Krypton 1351 kJ/mol
37 Rb Rubidium 403 kJ/mol
38 Sr Strontium 550 kJ/mol
39 Y Yttrium 600 kJ/mol
40 Zr Zirconium 640 kJ/mol
41 Nb Niobium 652 kJ/mol
42 Mo Molybdenum 684 kJ/mol
43 Tc Technetium 702 kJ/mol
44 Ru Ruthenium 710 kJ/mol
45 Rh Rhodium 720 kJ/mol
46 Pd Palladium 804 kJ/mol
47 Ag Silver 731 kJ/mol
48 Cd Cadmium 868 kJ/mol
49 In Indium 558 kJ/mol
50 Sn Tin 709 kJ/mol
51 Sb Antimony 834 kJ/mol
52 Te Tellurium 869 kJ/mol
53 I Iodine 1008 kJ/mol
54 Xe Xenon 1170 kJ/mol
55 Cs Cesium 375 kJ/mol
56 Ba Barium 502 kJ/mol
57 La Lanthanum 538 kJ/mol
58 Ce Cerium 534 kJ/mol
59 Pr Praseodymium 527 kJ/mol
60 Nd Neodymium 533 kJ/mol
61 Pm Promethium 540 kJ/mol
62 Sm Samarium 545 kJ/mol
63 Eu Europium 547 kJ/mol
64 Gd Gadolinium 593 kJ/mol
65 Tb Terbium 566 kJ/mol
66 Dy Dysprosium 573 kJ/mol
67 Ho Holmium 581 kJ/mol
68 Er Erbium 589 kJ/mol
69 Tm Thulium 597 kJ/mol
70 Yb Ytterbium 603 kJ/mol
71 Lu Lutetium 523 kJ/mol
72 Hf Hafnium 658 kJ/mol
73 Ta Tantalum 761 kJ/mol
74 W Tungsten 770 kJ/mol
75 Re Rhenium 760 kJ/mol
76 Os Osmium 840 kJ/mol
77 Ir Iridium 880 kJ/mol
78 Pt Platinum 870 kJ/mol
79 Au Gold 890 kJ/mol
80 Hg Mercury 1007 kJ/mol
81 Tl Thallium 589 kJ/mol
82 Pb Lead 715 kJ/mol
83 Bi Bismuth 703 kJ/mol
84 Po Polonium 812 kJ/mol
85 At Astatine 920 kJ/mol
86 Rn Radon 1037 kJ/mol
87 Fr Francium 380 kJ/mol
88 Ra Radium 509 kJ/mol
89 Ac Actinium 499 kJ/mol
90 Th Thorium 587 kJ/mol
91 Pa Protactinium 568 kJ/mol
92 U Uranium 597 kJ/mol
93 Np Neptunium 604 kJ/mol
94 Pu Plutonium 585 kJ/mol
95 Am Americium 578 kJ/mol
96 Cm Curium 581 kJ/mol
97 Bk Berkelium 601 kJ/mol
98 Cf Californium 608 kJ/mol
99 Es Einsteinium 619 kJ/mol
100 Fm Fermium 627 kJ/mol
101 Md Mendelevium 635 kJ/mol
102 No Nobelium 642 kJ/mol
103 Lr Lawrencium 470 kJ/mol
104 Rf Rutherfordium 580 kJ/mol
105 Db Dubnium -
106 Sg Seaborgium -
107 Bh Bohrium -
108 Hs Hassium -
109 Mt Meitnerium -
110 Ds Darmstadtium -
111 Rg Roentgenium -
112 Cn Copernicium -
113 Nh Nihonium -
114 Fl Flerovium -
115 Mc Moscovium -
116 Lv Livermorium -
117 Ts Tennessine -
118 Og Oganesson -