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Ionization Energies of the elements

Text lists sorted by: Value | Atomic Number | Alphabetical
Plots: 3D Live | Shaded | Ball | Crossed Line | Scatter | Sorted Scatter
Log scale plots: 3D Live | 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, 3.86×104, 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, 9.74×104, 1.056×105, 1.17×105, 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, 1.007×105, 1.091×105, 1.178×105, 1.299×105, 137530, 602930 kJ/mol
Vanadium
650.9, 1414, 2830, 4507, 6298.7, 12363, 14530, 16730, 19860, 22240, 24670, 29730, 32446, 86450, 94170, 1.023×105, 1.127×105, 1.216×105, 1.307×105, 1.434×105, 151440 kJ/mol
Chromium
652.9, 1590.6, 2987, 4743, 6702, 8744.9, 15455, 17820, 20190, 23580, 26130, 28750, 34230, 37066, 97510, 1.058×105, 1.143×105, 1.253×105, 1.347×105, 1.443×105, 1.577×105 kJ/mol
Manganese
717.3, 1509, 3248, 4940, 6990, 9220, 1.15×104, 18770, 2.14×104, 23960, 27590, 30330, 33150, 38880, 41987, 109480, 1.181×105, 1.271×105, 1.386×105, 1.485×105, 1.586×105 kJ/mol
Iron
762.5, 1561.9, 2957, 5290, 7240, 9560, 12060, 14580, 22540, 25290, 2.8×104, 31920, 34830, 37840, 4.41×104, 47206, 1.222×105, 1.31×105, 1.405×105, 1.526×105, 1.63×105 kJ/mol
Cobalt
760.4, 1648, 3232, 4950, 7670, 9840, 12440, 15230, 17959, 26570, 2.94×104, 3.24×104, 3.66×104, 3.97×104, 4.28×104, 49396, 52737, 134810, 145170, 1.547×105, 1.674×105 kJ/mol
Nickel
737.1, 1753, 3395, 5.3×103, 7339, 1.04×104, 1.28×104, 1.56×104, 1.86×104, 21670, 30970, 3.4×104, 3.71×104, 4.15×104, 4.48×104, 4.81×104, 55101, 58570, 1.487×105, 1.59×105, 1.694×105 kJ/mol
Copper
745.5, 1957.9, 3555, 5536, 7.7×103, 9.9×103, 1.34×104, 1.6×104, 1.92×104, 2.24×104, 2.56×104, 3.56×104, 3.87×104, 4.2×104, 4.67×104, 5.02×104, 5.37×104, 6.11×104, 64702, 1.637×105, 1.741×105 kJ/mol
Zinc
906.4, 1733.3, 3833, 5731, 7970, 1.04×104, 1.29×104, 1.68×104, 1.96×104, 2.3×104, 2.64×104, 29990, 40490, 4.38×104, 4.73×104, 5.23×104, 5.59×104, 5.97×104, 6.73×104, 7.12×104, 1.791×105 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, 1.86×104 kJ/mol
Krypton
1350.8, 2350.4, 3565, 5070, 6240, 7570, 10710, 12138, 22274, 25880, 2.97×104, 3.38×104, 3.77×104, 4.31×104, 4.75×104, 5.22×104, 5.71×104, 6.18×104, 7.58×104, 8.04×104, 8.53×104 kJ/mol
Rubidium
403, 2633, 3860, 5080, 6850, 8140, 9570, 13120, 1.45×104, 26740 kJ/mol
Strontium
549.5, 1064.2, 4138, 5.5×103, 6910, 8760, 10230, 1.18×104, 1.56×104, 1.71×104 kJ/mol
Yttrium
600, 1180, 1980, 5847, 7430, 8970, 11190, 12450, 14110, 1.84×104 kJ/mol
Zirconium
640.1, 1270, 2218, 3313, 7752, 9.5×103 kJ/mol
Niobium
652.1, 1380, 2416, 3.7×103, 4877, 9847, 1.21×104 kJ/mol
Molybdenum
684.3, 1560, 2618, 4480, 5257, 6640.8, 12125, 13860, 15835, 17980, 20190, 22219, 26930, 29196, 52490, 5.5×104, 6.14×104, 6.77×104, 7.4×104, 8.04×104, 8.7×104 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, 5.4×103, 1.04×104 kJ/mol
Tellurium
869.3, 1790, 2698, 3610, 5668, 6820, 1.32×104 kJ/mol
Iodine
1008.4, 1845.9, 3180 kJ/mol
Xenon
1170.4, 2046.4, 3099.4 kJ/mol
Cesium
375.7, 2234.3, 3.4×103 kJ/mol
Barium
502.9, 965.2, 3.6×103 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, 3.9×103 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, 2.2×103, 3990 kJ/mol
Holmium
581, 1140, 2204, 4.1×103 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, 1.5×103 kJ/mol
Tungsten
770, 1.7×103 kJ/mol
Rhenium
760, 1260, 2510, 3640 kJ/mol
Osmium
840, 1.6×103 kJ/mol
Iridium
880, 1.6×103 kJ/mol
Platinum
870, 1791 kJ/mol
Gold
890.1, 1980 kJ/mol
Mercury
1007.1, 1810, 3.3×103 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, 5.4×103, 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
UnunbiumN/A
UnuntriumN/A
UnunquadiumN/A
UnunpentiumN/A
UnunhexiumN/A
UnunseptiumN/A
UnunoctiumN/A


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

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