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Ionization Energies of the elements

Text lists sorted by: Value | Atomic Number | Alphabetical
Plots: Shaded | Ball | Crossed Line | Scatter | Sorted Scatter
Log scale plots: Shaded | Ball | Crossed Line | Scatter | Sorted Scatter
Good for this property: Scatter

Hydrogen
1312 kJ/mol
Helium
2372.3, 5250.5 kJ/mol
Lithium
520.2, 7298.1, 11815 kJ/mol
Beryllium
899.5, 1757.1, 14848.7, 21006.6 kJ/mol
Boron
800.6, 2427.1, 3659.7, 25025.8, 32826.7 kJ/mol
Carbon
1086.5, 2352.6, 4620.5, 6222.7, 37831, 47277 kJ/mol
Nitrogen
1402.3, 2856, 4578.1, 7475, 9444.9, 53266.6, 64360 kJ/mol
Oxygen
1313.9, 3388.3, 5300.5, 7469.2, 10989.5, 13326.5, 71330, 84078 kJ/mol
Fluorine
1681, 3374.2, 6050.4, 8407.7, 11022.7, 15164.1, 17868, 92038.1, 106434.3 kJ/mol
Neon
2080.7, 3952.3, 6122, 9371, 12177, 15238, 19999, 23069.5, 115379.5, 131432 kJ/mol
Sodium
495.8, 4562, 6910.3, 9543, 13354, 16613, 20117, 25496, 28932, 141362 kJ/mol
Magnesium
737.7, 1450.7, 7732.7, 10542.5, 13630, 18020, 21711, 25661, 31653, 35458 kJ/mol
Aluminum
577.5, 1816.7, 2744.8, 11577, 14842, 18379, 23326, 27465, 31853, 38473 kJ/mol
Silicon
786.5, 1577.1, 3231.6, 4355.5, 16091, 19805, 23780, 29287, 33878, 38726 kJ/mol
Phosphorus
1011.8, 1907, 2914.1, 4963.6, 6273.9, 21267, 25431, 29872, 35905, 40950 kJ/mol
Sulfur
999.6, 2252, 3357, 4556, 7004.3, 8495.8, 27107, 31719, 36621, 43177 kJ/mol
Chlorine
1251.2, 2298, 3822, 5158.6, 6542, 9362, 11018, 33604, 38600, 43961 kJ/mol
Argon
1520.6, 2665.8, 3931, 5771, 7238, 8781, 11995, 13842, 40760, 46186 kJ/mol
Potassium
418.8, 3052, 4420, 5877, 7975, 9590, 11343, 14944, 16963.7, 48610 kJ/mol
Calcium
589.8, 1145.4, 4912.4, 6491, 8153, 10496, 12270, 14206, 18191, 20385, 57110 kJ/mol
Scandium
633.1, 1235, 2388.6, 7090.6, 8843, 10679, 13310, 15250, 17370, 21726, 24102, 66320, 73010, 80160, 89490, 97400, 105600, 117000, 124270, 547530, 582163 kJ/mol
Titanium
658.8, 1309.8, 2652.5, 4174.6, 9581, 11533, 13590, 16440, 18530, 20833, 25575, 28125, 76015, 83280, 90880, 100700, 109100, 117800, 129900, 137530, 602930 kJ/mol
Vanadium
650.9, 1414, 2830, 4507, 6298.7, 12363, 14530, 16730, 19860, 22240, 24670, 29730, 32446, 86450, 94170, 102300, 112700, 121600, 130700, 143400, 151440 kJ/mol
Chromium
652.9, 1590.6, 2987, 4743, 6702, 8744.9, 15455, 17820, 20190, 23580, 26130, 28750, 34230, 37066, 97510, 105800, 114300, 125300, 134700, 144300, 157700 kJ/mol
Manganese
717.3, 1509, 3248, 4940, 6990, 9220, 11500, 18770, 21400, 23960, 27590, 30330, 33150, 38880, 41987, 109480, 118100, 127100, 138600, 148500, 158600 kJ/mol
Iron
762.5, 1561.9, 2957, 5290, 7240, 9560, 12060, 14580, 22540, 25290, 28000, 31920, 34830, 37840, 44100, 47206, 122200, 131000, 140500, 152600, 163000 kJ/mol
Cobalt
760.4, 1648, 3232, 4950, 7670, 9840, 12440, 15230, 17959, 26570, 29400, 32400, 36600, 39700, 42800, 49396, 52737, 134810, 145170, 154700, 167400 kJ/mol
Nickel
737.1, 1753, 3395, 5300, 7339, 10400, 12800, 15600, 18600, 21670, 30970, 34000, 37100, 41500, 44800, 48100, 55101, 58570, 148700, 159000, 169400 kJ/mol
Copper
745.5, 1957.9, 3555, 5536, 7700, 9900, 13400, 16000, 19200, 22400, 25600, 35600, 38700, 42000, 46700, 50200, 53700, 61100, 64702, 163700, 174100 kJ/mol
Zinc
906.4, 1733.3, 3833, 5731, 7970, 10400, 12900, 16800, 19600, 23000, 26400, 29990, 40490, 43800, 47300, 52300, 55900, 59700, 67300, 71200, 179100 kJ/mol
Gallium
578.8, 1979.3, 2963, 6180 kJ/mol
Germanium
762, 1537.5, 3302.1, 4411, 9020 kJ/mol
Arsenic
947, 1798, 2735, 4837, 6043, 12310 kJ/mol
Selenium
941, 2045, 2973.7, 4144, 6590, 7880, 14990 kJ/mol
Bromine
1139.9, 2103, 3470, 4560, 5760, 8550, 9940, 18600 kJ/mol
Krypton
1350.8, 2350.4, 3565, 5070, 6240, 7570, 10710, 12138, 22274, 25880, 29700, 33800, 37700, 43100, 47500, 52200, 57100, 61800, 75800, 80400, 85300 kJ/mol
Rubidium
403, 2633, 3860, 5080, 6850, 8140, 9570, 13120, 14500, 26740 kJ/mol
Strontium
549.5, 1064.2, 4138, 5500, 6910, 8760, 10230, 11800, 15600, 17100 kJ/mol
Yttrium
600, 1180, 1980, 5847, 7430, 8970, 11190, 12450, 14110, 18400 kJ/mol
Zirconium
640.1, 1270, 2218, 3313, 7752, 9500 kJ/mol
Niobium
652.1, 1380, 2416, 3700, 4877, 9847, 12100 kJ/mol
Molybdenum
684.3, 1560, 2618, 4480, 5257, 6640.8, 12125, 13860, 15835, 17980, 20190, 22219, 26930, 29196, 52490, 55000, 61400, 67700, 74000, 80400, 87000 kJ/mol
Technetium
702, 1470, 2850 kJ/mol
Ruthenium
710.2, 1620, 2747 kJ/mol
Rhodium
719.7, 1740, 2997 kJ/mol
Palladium
804.4, 1870, 3177 kJ/mol
Silver
731, 2070, 3361 kJ/mol
Cadmium
867.8, 1631.4, 3616 kJ/mol
Indium
558.3, 1820.7, 2704, 5210 kJ/mol
Tin
708.6, 1411.8, 2943, 3930.3, 7456 kJ/mol
Antimony
834, 1594.9, 2440, 4260, 5400, 10400 kJ/mol
Tellurium
869.3, 1790, 2698, 3610, 5668, 6820, 13200 kJ/mol
Iodine
1008.4, 1845.9, 3180 kJ/mol
Xenon
1170.4, 2046.4, 3099.4 kJ/mol
Cesium
375.7, 2234.3, 3400 kJ/mol
Barium
502.9, 965.2, 3600 kJ/mol
Lanthanum
538.1, 1067, 1850.3, 4819, 5940 kJ/mol
Cerium
534.4, 1050, 1949, 3547, 6325, 7490 kJ/mol
Praseodymium
527, 1020, 2086, 3761, 5551 kJ/mol
Neodymium
533.1, 1040, 2130, 3900 kJ/mol
Promethium
540, 1050, 2150, 3970 kJ/mol
Samarium
544.5, 1070, 2260, 3990 kJ/mol
Europium
547.1, 1085, 2404, 4120 kJ/mol
Gadolinium
593.4, 1170, 1990, 4250 kJ/mol
Terbium
565.8, 1110, 2114, 3839 kJ/mol
Dysprosium
573, 1130, 2200, 3990 kJ/mol
Holmium
581, 1140, 2204, 4100 kJ/mol
Erbium
589.3, 1150, 2194, 4120 kJ/mol
Thulium
596.7, 1160, 2285, 4120 kJ/mol
Ytterbium
603.4, 1174.8, 2417, 4203 kJ/mol
Lutetium
523.5, 1340, 2022.3, 4370, 6445 kJ/mol
Hafnium
658.5, 1440, 2250, 3216 kJ/mol
Tantalum
761, 1500 kJ/mol
Tungsten
770, 1700 kJ/mol
Rhenium
760, 1260, 2510, 3640 kJ/mol
Osmium
840, 1600 kJ/mol
Iridium
880, 1600 kJ/mol
Platinum
870, 1791 kJ/mol
Gold
890.1, 1980 kJ/mol
Mercury
1007.1, 1810, 3300 kJ/mol
Thallium
589.4, 1971, 2878 kJ/mol
Lead
715.6, 1450.5, 3081.5, 4083, 6640 kJ/mol
Bismuth
703, 1610, 2466, 4370, 5400, 8520 kJ/mol
Polonium
812.1 kJ/mol
Astatine
920 kJ/mol
Radon
1037 kJ/mol
Francium
380 kJ/mol
Radium
509.3, 979 kJ/mol
Actinium
499, 1170 kJ/mol
Thorium
587, 1110, 1930, 2780 kJ/mol
Protactinium
568 kJ/mol
Uranium
597.6, 1420 kJ/mol
Neptunium
604.5 kJ/mol
Plutonium
584.7 kJ/mol
Americium
578 kJ/mol
Curium
581 kJ/mol
Berkelium
601 kJ/mol
Californium
608 kJ/mol
Einsteinium
619 kJ/mol
Fermium
627 kJ/mol
Mendelevium
635 kJ/mol
Nobelium
642 kJ/mol
LawrenciumN/A
RutherfordiumN/A
DubniumN/A
SeaborgiumN/A
BohriumN/A
HassiumN/A
MeitneriumN/A
DarmstadtiumN/A
RoentgeniumN/A
CoperniciumN/A
NihoniumN/A
FleroviumN/A
MoscoviumN/A
LivermoriumN/A
TennessineN/A
OganessonN/A


Up to date, curated data provided by Mathematica's ElementData function from Wolfram Research, Inc.

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Common Properties
Abundance in Earth's Crust Discovery Year
Abundance in Humans Electrical Conductivity
Abundance in Meteorites Electron Affinity
Abundance in the Ocean Electron Configuration
Abundance in the Sun Electronegativity
Abundance in the Universe Half Life
Atomic Mass Heat of Fusion
Atomic Number Heat of Vaporization
Atomic Radius Ionization Energies
Boiling Point Melting Point
Covalent Radius Specific Heat
Density
 
Other Properties
Adiabatic Index Mohs Hardness
Allotrope Names Molar Magnetic Susceptibility
Alternate Names Molar Volume
Block Neutron Cross Section
Brinell Hardness Neutron Mass Absorption
Bulk Modulus NFPA Label
CAS Number Period
CID Number Phase
Color Poisson Ratio
Critical Pressure Quantum Numbers
Critical Temperature Radioactive
Crystal Structure Refractive Index
Curie Point Resistivity
Decay Mode RTECS Number
DOT Hazard Class Series
DOT Numbers Shear Modulus
Electrical Type Space Group Name
Gas Atomic Multiplicities Space Group Number
Group Speed of Sound
Isotope Abundances Superconducting Point
Isotopes (All Known) Symbol
Isotopes (Stable) Thermal Conductivity
Lattice Angles Thermal Expansion
Lattice Constants Valence
Lifetime Van Der Waals Radius
Liquid Density Vickers Hardness
Magnetic Type Volume Magnetic Susceptibility
Mass Magnetic Susceptibility Young Modulus
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