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Atomic properties of elements

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This is a table of 173 elements detailing their atomic properties, including atomic mass, numbers of subatomic particles, isotopes, half-life, atomic radius, electronegativity, oxidation numbers, and distributions of electrons.

Name Symbol Protons Neutrons Nucleons Nuclear ratio Nuclear radius (fm) Stable isotopes Half-life Atomic mass (amu) Atomic radius (pm) Electronegativity First ionization energy (kJ/mol) Oxidation states Electron notation Electron configuration Electrons per shell
Neutronium Nu 0 1 1 1.20 0 10.241 min 1.0087 0 N/A N/A 0 0-0-0 0n0 0
Hydrogen H 1 0 1 0.00 1.20 2 Stable 1.0078 37 2.20 1312.0 −1, +1 1-1-1 1s1 1
Helium He 2 2 4 1.00 1.90 2 Stable 4.0330 32 5.50 2372.3 0 2-1-1 1s2 2
Lithium Li 3 4 7 1.33 2.29 2 Stable 7.0581 152 0.98 520.3 −1, +1 3-2-2 [He] 2s1 2, 1
Beryllium Be 4 5 9 1.25 2.49 1 Stable 9.0746 112 1.57 899.5 +1, +2 4-2-2 [He] 2s2 2, 2
Boron B 5 6 11 1.20 2.66 2 Stable 11.0911 90 2.04 800.6 −3, −2, −1, +1, +2, +3 5-2-3 [He] 2s2 2p1 2, 3
Carbon C 6 6 12 1.00 2.74 2 Stable 12.0989 77 2.55 1086.4 −4, −3, −2, −1, +1, +2, +3, +4 6-2-3 [He] 2s2 2p2 2, 4
Nitrogen N 7 7 14 1.00 2.88 2 Stable 14.1154 70 3.04 1402.3 −3, −2, −1, +1, +2, +3, +4, +5 7-2-3 [He] 2s2 2p3 2, 5
Oxygen O 8 8 16 1.00 3.01 3 Stable 16.1319 66 3.44 1314.0 −2, −1, +1, +2 8-2-3 [He] 2s2 2p4 2, 6
Fluorine F 9 10 19 1.11 3.19 1 Stable 19.1571 64 3.98 1681.1 −1 9-2-3 [He] 2s2 2p5 2, 7
Neon Ne 10 10 20 1.00 3.24 3 Stable 20.1649 69 4.84 2080.7 0 10-2-3 [He] 2s2 2p1 2, 8
Sodium Na 11 12 23 1.09 3.40 1 Stable 23.1901 186 0.93 495.8 −1, +1 11-3-4 [Ne] 3s1 2, 8, 1
Magnesium Mg 12 12 24 1.00 3.45 3 Stable 24.1979 160 1.31 737.7 +1, +2 12-3-4 [Ne] 3s2 2, 8, 2
Aluminum Al 13 14 27 1.08 3.59 1 Stable 27.2230 143 1.61 577.6 −3, −2, −1, +1, +2 +3 13-3-5 [Ne] 3s2 3p1 2, 8, 3
Silicon Si 14 14 28 1.00 3.63 3 Stable 28.2309 117 1.90 786.6 −4, −3, −2, −1, +1, +2, +3, +4 14-3-5 [Ne] 3s2 3p2 2, 8, 4
Phosphorus P 15 16 31 1.07 3.75 1 Stable 31.2560 112 2.19 1011.9 −3, −2, −1, +1, +2, +3, +4, +5 15-3-5 [Ne] 3s2 3p3 2, 8, 5
Sulfur S 16 16 32 1.00 3.79 4 Stable 32.2638 104 2.58 999.6 −2, −1, +1, +2, +3, +4, +5, +6 16-3-5 [Ne] 3s2 3p4 2, 8, 6
Chlorine Cl 17 18 35 1.06 3.91 2 Stable 35.2890 99 3.16 1251.2 −1, +1, +2, +3, +4, +5, +6, +7 17-3-5 [Ne] 3s2 3p5 2, 8, 7
Argon Ar 18 22 40 1.22 4.09 3 Stable 40.3315 97 3.83 1520.6 0 18-3-5 [Ne] 3s2 3p6 2, 8, 8
Potassium K 19 20 39 1.05 4.05 2 Stable 39.3220 227 0.82 418.8 −1, +1 19-4-6 [Ar] 4s1 2, 8, 8, 1
Calcium Ca 20 20 40 1.00 4.09 5 Stable 40.3298 197 1.00 589.8 +1, +2 20-4-6 [Ar] 4s2 2, 8, 8, 2
Scandium Sc 21 24 45 1.14 4.25 1 Stable 45.3723 162 1.36 633.1 +1, +2, +3 21-4-7 [Ar] 3d1 4s2 2, 8, 9, 2
Titanium Ti 22 26 48 1.18 4.34 5 Stable 48.3974 147 1.54 658.8 −1, +2, +3, +4 22-4-7 [Ar] 3d2 4s2 2, 8, 10, 2
Vanadium V 23 28 51 1.22 4.43 1 Stable 51.4226 132 1.63 650.9 −1, 0, +1, +2, +3, +4, +5 23-4-7 [Ar] 3d3 4s2 2, 8, 11, 2
Chromium Cr 24 28 52 1.17 4.46 4 Stable 52.4304 125 1.66 652.9 −2, −1, 0, +1, +2, +3, +4, +5, +6 24-4-7 [Ar] 3d5 4s1 2, 8, 13, 1
Manganese Mn 25 30 55 1.20 4.54 1 Stable 55.4556 124 1.55 717.3 −3, −2, −1, 0, +1, +2, +3, +4, +5, +6, +7 25-4-7 [Ar] 3d5 4s2 2, 8, 13, 2
Iron Fe 26 30 56 1.15 4.57 4 Stable 56.4634 124 1.83 762.4 −2, −1, 0, +1, +2, +3, +4, +5, +6 26-4-7 [Ar] 3d6 4s2 2, 8, 14, 2
Cobalt Co 27 32 59 1.19 4.65 1 Stable 59.4886 125 1.88 737.2 −1, 0, +1, +2, +3, +4, +5 27-4-7 [Ar] 3d7 4s2 2, 8, 15, 2
Nickel Ni 28 30 58 1.07 4.63 5 Stable 58.4790 125 1.91 760.4 −1, 0, +1, +2, +3, +4 28-4-7 [Ar] 3d8 4s2 2, 8, 16, 2
Copper Cu 29 34 63 1.17 4.76 2 Stable 63.5215 128 1.90 745.5 +1, +2, +3, +4 29-4-7 [Ar] 3d10 4s1 2, 8, 18, 1
Zinc Zn 30 34 64 1.13 4.78 5 Stable 64.5294 133 1.65 906.4 +1, +2 30-4-7 [Ar] 3d10 4s2 2, 8, 18, 2
Gallium Ga 31 38 69 1.23 4.90 2 Stable 69.5718 122 1.81 578.8 −3, −2, −1, +1, +2, +3 31-4-8 [Ar] 3d10 4s2 4p1 2, 8, 18, 3
Germanium Ge 32 42 74 1.31 5.02 4 Stable 74.6143 123 2.01 762.2 −4, +1, +2, +3, +4 32-4-8 [Ar] 3d10 4s2 4p2 2, 8, 18, 4
Arsenic As 33 42 75 1.27 5.04 1 Stable 75.6222 121 2.18 944.5 −3, +2, +3, +5 33-4-8 [Ar] 3d10 4s2 4p3 2, 8, 18, 5
Selenium Se 34 46 80 1.35 5.15 5 Stable 80.6646 117 2.55 940.9 −2, +2, +4, +6 34-4-8 [Ar] 3d10 4s2 4p4 2, 8, 18, 6
Bromine Br 35 45 80 1.29 5.15 2 Stable 80.6638 114 2.96 1139.9 −1, +1, +3, +4, +5, +7 35-4-8 [Ar] 3d10 4s2 4p5 2, 8, 18, 7
Krypton Kr 36 48 84 1.33 5.23 6 Stable 84.6976 110 3.00 1350.8 0, +2 36-4-8 [Ar] 3d10 4s2 4p6 2, 8, 18, 8
Rubidium Rb 37 48 85 1.30 5.25 1 Stable 85.7054 248 0.82 403.0 −1, +1 37-5-9 [Kr] 5s1 2, 8, 18, 8, 1
Strontium Sr 38 50 88 1.32 5.32 4 Stable 88.7306 215 0.95 549.5 +1, +2 38-5-9 [Kr] 5s2 2, 8, 18, 8, 2
Yttrium Y 39 50 89 1.28 5.34 1 Stable 89.7384 181 1.22 599.9 +1, +2, +3 39-5-10 [Kr] 4d1 5s2 2, 8, 18, 9, 2
Zirconium Zr 40 50 90 1.25 5.36 4 Stable 90.7462 160 1.33 640.1 +1, +2, +3, +4 40-5-10 [Kr] 4d2 5s2 2, 8, 18, 10, 2
Niobium Nb 41 52 93 1.27 5.41 1 Stable 93.7714 143 1.60 652.2 −1, +2, +3, +4, +5 41-5-10 [Kr] 4d4 5s1 2, 8, 18, 12, 1
Molybdenum Mo 42 56 98 1.33 5.51 6 Stable 98.8139 136 2.16 684.3 −2, −1, 0, +1, +2, +3, +4, +5, +6 42-5-10 [Kr] 4d5 5s1 2, 8, 18, 13, 1
Technetium Tc 43 55 98 1.28 5.51 0 4.2077 My 98.8130 136 1.90 702.4 −3, −1, 0, +1, +2, +3, +4, +5, +6, +7 43-5-10 [Kr] 4d5 5s2 2, 8, 18, 13, 2
Ruthenium Ru 44 58 102 1.32 5.58 7 Stable 102.8469 134 2.20 710.2 −2, 0, +1, +2, +3, +4, +5, +6, +7, +8 44-5-10 [Kr] 4d7 5s1 2, 8, 18, 15, 1
Rhodium Rh 45 58 103 1.29 5.60 1 Stable 103.8547 134 2.28 719.7 −1, 0, +1, +2, +3, +4, +5, +6 45-5-10 [Kr] 4d8 5s1 2, 8, 18, 16, 1
Palladium Pd 46 60 106 1.30 5.66 6 Stable 106.8798 138 2.20 804.4 +2, +4 46-5-9 [Kr] 4d10 2, 8, 18, 18, 0
Silver Ag 47 60 107 1.28 5.67 2 Stable 107.8877 144 1.93 731.0 +1, +2, +3 47-5-10 [Kr] 4d10 5s1 2, 8, 18, 18, 1
Cadmium Cd 48 66 114 1.38 5.79 6 Stable 114.9475 149 1.69 867.8 +1, +2 48-5-10 [Kr] 4d10 5s2 2, 8, 18, 18, 2
Indium In 49 66 115 1.35 5.81 1 Stable 115.9553 163 1.78 558.3 −3, −2, −1, +1, +2, +3 49-5-11 [Kr] 4d10 5s2 5p1 2, 8, 18, 18, 3
Tin Sn 50 70 120 1.40 5.89 10 Stable 120.9978 141 1.96 708.6 −4, +2, +4 50-5-11 [Kr] 4d10 5s2 5p2 2, 8, 18, 18, 4
Antimony Sb 51 72 123 1.41 5.94 2 Stable 124.0230 141 2.05 830.6 −3, +3, +5 51-5-11 [Kr] 4d10 5s2 5p3 2, 8, 18, 18, 5
Tellurium Te 52 78 130 1.50 6.05 6 Stable 131.0828 143 2.10 869.3 −2, +2, +4, +5, +6 52-5-11 [Kr] 4d10 5s2 5p4 2, 8, 18, 18, 6
Iodine I 53 74 127 1.40 6.01 1 Stable 128.0559 133 2.66 1008.4 −1, +1, +3, +5, +7 53-5-11 [Kr] 4d10 5s2 5p5 2, 8, 18, 18, 7
Xenon Xe 54 78 132 1.44 6.09 9 Stable 133.0984 130 2.60 1170.4 0, +2, +4, +6, +8 54-5-11 [Kr] 4d10 5s2 5p6 2, 8, 18, 18, 8
Cesium Cs 55 78 133 1.42 6.10 1 Stable 134.1062 265 0.79 375.7 −1, +1 55-6-12 [Xe] 6s1 2, 8, 18, 18, 8, 1
Barium Ba 56 81 137 1.45 6.16 6 Stable 138.1401 217 0.89 502.9 +1, +2 56-6-12 [Xe] 6s2 2, 8, 18, 18, 8, 2
Lanthanum La 57 82 139 1.44 6.19 1 Stable 140.1566 188 1.10 538.1 +2, +3 57-6-13 [Xe] 5d1 6s2 2, 8, 18, 18, 9, 2
Cerium Ce 58 82 140 1.41 6.21 4 Stable 141.1644 182 1.12 534.4 +2, +3, +4 58-6-14 [Xe] 4f1 5d1 6s2 2, 8, 18, 19, 9, 2
Praseodymium Pr 59 82 141 1.39 6.22 1 Stable 142.1722 183 1.13 528.1 +2, +3, +4 59-6-13 [Xe] 4f3 6s2 2, 8, 18, 21, 8, 2
Neodymium Nd 60 82 142 1.37 6.23 5 Stable 143.1800 182 1.14 533.1 +2, +3 60-6-13 [Xe] 4f4 6s2 2, 8, 18, 22, 8, 2
Promethium Pm 61 84 145 1.38 6.28 1 17.713 y 146.2052 181 1.16 538.6 +3 61-6-13 [Xe] 4f5 6s2 2, 8, 18, 23, 8, 2
Samarium Sm 62 90 152 1.45 6.38 5 Stable 153.2650 180 1.17 544.6 +2, +3 62-6-13 [Xe] 4f6 6s2 2, 8, 18, 24, 8, 2
Europium Eu 63 90 153 1.43 6.39 1 Stable 154.2728 204 1.19 547.1 +2, +3 63-6-13 [Xe] 4f7 6s2 2, 8, 18, 25, 8, 2
Gadolinium Gd 64 94 158 1.47 6.46 6 Stable 159.3153 180 1.20 593.4 +1, +2, +3 64-6-13 [Xe] 4f8 6s2 2, 8, 18, 26, 8, 2
Terbium Tb 65 94 159 1.45 6.47 1 Stable 160.3231 178 1.21 565.8 +1, +3, +4 65-6-13 [Xe] 4f9 6s2 2, 8, 18, 27, 8, 2
Dysprosium Dy 66 96 162 1.45 6.51 7 Stable 163.3483 177 1.22 573.0 +2, +3 66-6-13 [Xe] 4f10 6s2 2, 8, 18, 28, 8, 2
Holmium Ho 67 98 165 1.46 6.55 1 Stable 166.3734 177 1.23 581.0 +3 67-6-13 [Xe] 4f11 6s2 2, 8, 18, 29, 8, 2
Erbium Er 68 98 166 1.44 6.57 6 Stable 167.3813 176 1.24 589.3 +3 68-6-13 [Xe] 4f12 6s2 2, 8, 18, 30, 8, 2
Thulium Tm 69 100 169 1.45 6.61 1 Stable 170.4064 175 1.25 596.7 +2, +3 69-6-13 [Xe] 4f13 6s2 2, 8, 18, 31, 8, 2
Ytterbium Yb 70 104 174 1.49 6.67 7 Stable 175.4489 194 1.26 603.4 +2, +3 70-6-13 [Xe] 4f14 6s2 2, 8, 18, 32, 8, 2
Lutetium Lu 71 104 175 1.46 6.68 1 Stable 176.4567 173 1.27 523.5 +3 71-6-14 [Xe] 4f14 5d1 6s2 2, 8, 18, 32, 9, 2
Hafnium Hf 72 106 178 1.47 6.72 5 Stable 179.4819 156 1.30 658.5 +2, +3, +4 72-6-14 [Xe] 4f14 5d2 6s2 2, 8, 18, 32, 10, 2
Tantalum Ta 73 108 181 1.48 6.76 2 Stable 182.5070 143 1.50 728.5 −1, +2, +3, +4, +5 73-6-14 [Xe] 4f14 5d3 6s2 2, 8, 18, 32, 11, 2
Tungsten W 74 110 184 1.49 6.80 4 Stable 185.5322 137 2.36 758.8 −2, −1, 0, +1, +2, +3, +4, +5, +6 74-6-14 [Xe] 4f14 5d4 6s2 2, 8, 18, 32, 12, 2
Rhenium Re 75 112 187 1.49 6.83 1 Stable 188.5573 137 1.90 755.9 −3, −1, 0, +1, +2, +3, +4, +5, +6, +7 75-6-14 [Xe] 4f14 5d5 6s2 2, 8, 18, 32, 13, 2
Osmium Os 76 116 192 1.53 6.89 6 Stable 193.5998 135 2.20 814.2 −2, −1, 0, +1, +2, +3, +4, +5, +6, +7, +8 76-6-14 [Xe] 4f14 5d6 6s2 2, 8, 18, 32, 14, 2
Iridium Ir 77 116 193 1.51 6.91 2 Stable 194.6077 136 2.20 865.2 −3, −1, 0, +1, +2, +3, +4, +5, +6 77-6-14 [Xe] 4f14 5d7 6s2 2, 8, 18, 32, 15, 2
Platinum Pt 78 117 195 1.50 6.93 5 Stable 196.6241 138 2.28 864.4 −2, 0, +2, +4, +5, +6 78-6-14 [Xe] 4f14 5d9 6s1 2, 8, 18, 32, 17, 1
Gold Au 79 118 197 1.49 6.95 1 Stable 198.6406 144 2.54 890.2 −1, 0, +1, +2, +3, +5 79-6-14 [Xe] 4f14 5d10 6s1 2, 8, 18, 32, 18, 1
Mercury Hg 80 122 202 1.53 7.01 7 Stable 203.6831 151 2.00 1007.1 0, +1, +2, +4 80-6-14 [Xe] 4f14 5d10 6s2 2, 8, 18, 32, 18, 2
Thallium Tl 81 124 205 1.53 7.05 2 Stable 206.7083 170 1.62 589.3 −3, −2, −1, +1, +3 81-6-15 [Xe] 4f14 5d10 6s2 6p1 2, 8, 18, 32, 18, 3
Lead Pb 82 126 208 1.54 7.08 4 Stable 209.7334 175 2.33 715.6 −4, +2, +4 82-6-15 [Xe] 4f14 5d10 6s2 6p2 2, 8, 18, 32, 18, 4
Bismuth Bi 83 126 209 1.52 7.09 0 18.745 Ey 210.7413 156 2.02 703.0 −3, +3, +5 83-6-15 [Xe] 4f14 5d10 6s2 6p3 2, 8, 18, 32, 18, 5
Polonium Po 84 124 208 1.48 7.08 0 103.32 y 209.7318 168 2.00 812.1 −2, +2, +4, +6 84-6-15 [Xe] 4f14 5d10 6s2 6p4 2, 8, 18, 32, 18, 6
Astatine At 85 125 210 1.47 7.10 0 8.0841 h 211.7482 140 2.20 887.7 −1, +1, +3, +5, +7 85-6-15 [Xe] 4f14 5d10 6s2 6p5 2, 8, 18, 32, 18, 7
Radon Rn 86 136 222 1.58 7.24 0 3.8235 d 223.8514 145 2.21 1036.7 0, +2, +4, +6 86-6-15 [Xe] 4f14 5d10 6s2 6p6 2, 8, 18, 32, 18, 8
Francium Fr 87 136 223 1.56 7.25 0 21.997 min 224.8592 270 0.75 380.2 +1 87-7-16 [Rn] 7s1 2, 8, 18, 32, 18, 8, 1
Radium Ra 88 138 226 1.57 7.28 0 1602.3 y 227.8844 223 0.89 509.3 +1, +2 88-7-16 [Rn] 7s2 2, 8, 18, 32, 18, 8, 2
Actinium Ac 89 138 227 1.55 7.29 0 21.773 y 228.8922 188 1.10 498.5 +3 89-7-17 [Rn] 6d1 7s2 2, 8, 18, 32, 18, 9, 2
Thorium Th 90 142 232 1.58 7.34 0 14.054 Gy 233.9347 180 1.28 587.1 +2, +3, +4 90-7-17 [Rn] 6d2 7s2 2, 8, 18, 32, 20, 8, 2
Protactinium Pa 91 140 231 1.54 7.33 0 32.760 ky 232.9252 163 1.47 568.4 +3, +4, +5 91-7-18 [Rn] 5f2 6d1 7s2 2, 8, 18, 32, 20, 9, 2
Uranium U 92 146 238 1.59 7.41 0 4.4677 Gy 239.9850 154 1.38 597.6 +3, +4, +5, +6 92-7-18 [Rn] 5f3 6d1 7s2 2, 8, 18, 32, 21, 9, 2
Neptunium Np 93 144 237 1.55 7.40 0 2.1437 My 238.9755 150 1.36 604.5 +3, +4, +5, +6, +7 93-7-18 [Rn] 5f4 6d1 7s2 2, 8, 18, 32, 22, 9, 2
Plutonium Pu 94 150 244 1.60 7.47 0 80.808 My 246.0353 149 1.28 584.7 +3, +4, +5, +6, +7 94-7-17 [Rn] 5f6 7s2 2, 8, 18, 32, 24, 8, 2
Americium Am 95 148 243 1.56 7.46 0 7.3701 ky 245.0258 173 1.33 577.8 +2, +3, +4, +5, +6 95-7-17 [Rn] 5f7 7s2 2, 8, 18, 32, 25, 8, 2
Curium Cm 96 151 247 1.57 7.50 0 15.585 My 249.0596 174 1.34 580.6 +3, +4 96-7-18 [Rn] 5f7 6d1 7s2 2, 8, 18, 32, 25, 9, 2
Berkelium Bk 97 150 247 1.55 7.50 0 1.3802 ky 249.0588 170 1.27 601.1 +3, +4 97-7-17 [Rn] 5f9 7s2 2, 8, 18, 32, 27, 8, 2
Californium Cf 98 153 251 1.56 7.54 0 897.58 y 253.0926 169 1.29 608.4 +2, +3, +4 98-7-17 [Rn] 5f10 7s2 2, 8, 18, 32, 28, 8, 2
Einsteinium Es 99 153 252 1.55 7.55 0 25.331 y 254.1004 203 1.27 618.7 +2, +3 99-7-17 [Rn] 5f11 7s2 2, 8, 18, 32, 29, 8, 2
Fermium Fm 100 157 257 1.57 7.60 0 100.53 d 259.1429 201 1.31 626.9 +2, +3 100-7-17 [Rn] 5f12 7s2 2, 8, 18, 32, 30, 8, 2
Mendelevium Md 101 157 258 1.55 7.61 0 51.526 d 260.1507 194 1.30 635.0 +2, +3 101-7-17 [Rn] 5f13 7s2 2, 8, 18, 32, 31, 8, 2
Nobelium No 102 159 261 1.56 7.64 0 2.7869 h 263.1759 183 1.34 641.6 +2, +3 102-7-17 [Rn] 5f14 7s2 2, 8, 18, 32, 32, 8, 2
Lawrencium Lr 103 162 265 1.57 7.68 0 10.1338 h 267.2097 167 1.07 444.9 +3 103-7-18 [Rn] 5f14 7s2 7p1 2, 8, 18, 32, 32, 8, 3
Rutherfordium Rf 104 162 266 1.56 7.69 0 10.224 h 268.2175 150 1.26 577.9 +3, +4 104-7-18 [Rn] 5f14 6d2 7s2 2, 8, 18, 32, 32, 10, 2
Dubnium Db 105 167 272 1.59 7.74 0 1.0855 d 274.2687 139 1.51 664.5 +3, +4, +5 105-7-18 [Rn] 5f14 6d3 7s2 2, 8, 18, 32, 32, 11, 2
Seaborgium Sg 106 170 276 1.60 7.78 0 32.845 y 278.3025 132 2.07 757.1 +3, +4, +5, +6 106-7-18 [Rn] 5f14 6d4 7s2 2, 8, 18, 32, 32, 12, 2
Bohrium Bh 107 172 279 1.61 7.81 0 17.365 h 281.3276 128 2.21 740.6 +3, +4, +5, +7 107-7-18 [Rn] 5f14 6d5 7s2 2, 8, 18, 32, 32, 13, 2
Hassium Hs 108 174 282 1.61 7.84 0 308.52 d 284.3528 126 2.19 731.9 +2, +3, +4, +5, +6, +8 108-7-18 [Rn] 5f14 6d6 7s2 2, 8, 18, 32, 32, 14, 2
Meitnerium Mt 109 178 287 1.63 7.88 0 17.381 d 289.3953 128 2.44 805.2 +1, +3, +4, +6, +8, +9 109-7-18 [Rn] 5f14 6d7 7s2 2, 8, 18, 32, 32, 15, 2
Darmstadtium Ds 110 180 290 1.64 7.91 0 9.6477 y 292.4204 132 2.48 954.6 0, +2, +4, +6, +8 110-7-18 [Rn] 5f14 6d9 7s1 2, 8, 18, 32, 32, 17, 1
Roentgenium Rg 111 176 287 1.59 7.88 0 15.274 d 289.3936 138 2.67 1022.7 −1, 0, +1, +3, +5 111-7-18 [Rn] 5f14 6d10 7s1 2, 8, 18, 32, 32, 18, 1
Copernicium Cn 112 179 291 1.60 7.92 0 1.2120 ky 293.4274 147 2.11 1154.9 0, +2, +4 112-7-18 [Rn] 5f14 6d10 7s2 2, 8, 18, 32, 32, 18, 2
Becquerelium Bc 113 180 293 1.59 7.94 0 4.9597 mon 295.4439 170 1.57 704.9 +1, +2, +3, +5 113-7-19 [Rn] 5f14 6d10 7s2 7p1 2, 8, 18, 32, 32, 18, 3
Flerovium Fl 114 184 298 1.61 7.98 0 432.06 ky 300.4864 180 2.39 823.9 0, +2, +4 114-7-19 [Rn] 5f14 6d10 7s2 7p2 2, 8, 18, 32, 32, 18, 4
Lazarium Lz 115 184 299 1.60 7.99 0 1.1488 ky 301.4942 187 1.21 538.4 −1, +1, +3 115-7-19 [Rn] 5f14 6d10 7s2 7p3 2, 8, 18, 32, 32, 18, 5
Livermorium Lv 116 189 305 1.63 8.04 0 4.1995 y 307.5454 183 1.91 721.8 −2, +2, +4 116-7-19 [Rn] 5f14 6d10 7s2 7p4 2, 8, 18, 32, 32, 18, 6
Jointium J 117 193 310 1.65 8.09 0 7.3014 y 312.5879 138 1.87 744.1 −1, +1, +3, +5 117-7-19 [Rn] 5f14 6d10 7s2 7p5 2, 8, 18, 32, 32, 18, 7
Moscovium Mc 118 195 313 1.65 8.11 0 90.702 y 315.6130 157 1.85 842.9 0, +1, +2, +4, +6 118-7-19 [Rn] 5f14 6d10 7s2 7p6 2, 8, 18, 32, 32, 18, 8
Newtonium Nw 119 198 317 1.66 8.15 0 2.9298 mon 319.6468 240 0.83 436.7 +1, +3 119-8-20 [Mc] 8s1 2, 8, 18, 32, 32, 18, 8, 1
Galilinium Gl 120 200 320 1.67 8.17 0 322.44 My 322.6720 199 0.98 580.2 +1, +2, +4 120-8-20 [Mc] 8s2 2, 8, 18, 32, 32, 18, 8, 2
Lavoisium Ls 121 204 325 1.69 8.22 0 107.66 y 327.7145 188 1.04 555.0 +3 121-8-21 [Mc] 8s2 8p1 2, 8, 18, 32, 32, 18, 8, 3
Democritium Dm 122 204 326 1.67 8.23 0 83.770 Gy 328.7223 188 1.07 505.7 +2, +3, +4 122-8-22 [Mc] 7d1 8s2 8p1 2, 8, 18, 32, 32, 18, 9, 3
Moselium Ms 123 208 331 1.69 8.27 0 735.86 My 333.7648 183 1.13 460.9 +3, +4, +5 123-8-23 [Mc] 6f1 7d1 8s2 8p1 2, 8, 18, 32, 32, 19, 9, 3
Teslium Ts 124 206 330 1.66 8.26 0 47.560 Gy 332.7553 181 1.02 431.8 +2, +3, +4, +6 124-8-22 [Mc] 6f3 8s2 8p1 2, 8, 18, 32, 32, 21, 8, 3
Daltonium Dt 125 207 332 1.66 8.28 0 24.968 My 334.7718 171 1.15 479.4 +3, +4, +5, +7 125-8-23 [Mc] 5g1 6f3 8s2 8p1 2, 8, 18, 32, 33, 21, 8, 3
Maxwellium Mw 126 208 334 1.65 8.29 0 117.13 Gy 336.7883 167 0.99 374.0 +4, +6, +8 126-8-24 [Mc] 5g2 6f2 7d1 8s2 8p1 2, 8, 18, 32, 34, 20, 9, 3
Planckium Pk 127 214 341 1.69 8.35 0 963.62 ky 343.8481 181 1.17 483.6 +5, +7, +8, +9 127-8-23 [Mc] 5g4 6f2 8s2 8p2 2, 8, 18, 32, 36, 20, 8, 4
Boylium By 128 215 343 1.68 8.37 0 5.3681 My 345.8646 165 1.19 518.0 +4, +6, +8, +10 128-8-23 [Mc] 5g5 6f2 8s2 8p2 2, 8, 18, 32, 37, 20, 8, 4
Berzelium Bz 129 219 348 1.70 8.41 0 150.24 y 350.9070 166 1.23 546.9 +3, +5, +6, +7, +8, +9 129-8-23 [Mc] 5g6 6f2 8s2 8p2 2, 8, 18, 32, 38, 20, 8, 4
Franklinium Fk 130 221 351 1.70 8.43 0 9.6449 y 353.9322 167 1.36 596.0 +4, +5, +6 +8 130-8-23 [Mc] 5g7 6f2 8s2 8p2 2, 8, 18, 32, 39, 20, 8, 4
Darwinium Dw 131 223 354 1.70 8.45 0 6.0120 mon 356.9574 164 1.45 630.5 +3, +5, +6, +7 131-8-23 [Mc] 5g8 6f2 8s2 8p2 2, 8, 18, 32, 40, 20, 8, 4
Thomsonium To 132 226 358 1.71 8.49 0 4.9073 y 360.9912 173 1.34 638.3 +2, +4, +5, +6 132-8-23 [Mc] 5g8 6f3 8s2 8p2 2, 8, 18, 32, 40, 21, 8, 4
Paulium Pl 133 228 361 1.71 8.51 0 12.537 h 364.0163 162 1.23 624.3 +2, +3, +4, +5, +6 133-8-23 [Mc] 5g8 6f4 8s2 8p2 2, 8, 18, 32, 40, 22, 8, 4
Arrhenium Ah 134 232 366 1.73 8.55 0 256.13 d 369.0588 159 1.29 616.3 +2, +4, +6 134-8-23 [Mc] 5g9 6f4 8s2 8p2 2, 8, 18, 32, 41, 22, 8, 4
Meyerium My 135 234 369 1.73 8.57 0 10.686 min 372.0840 159 1.35 646.8 +3, +4, +5 135-8-23 [Mc] 5g10 6f4 8s2 8p2 2, 8, 18, 32, 42, 22, 8, 4
Cavendishium Cv 136 237 373 1.74 8.60 0 4.5110 d 376.1178 152 1.33 600.1 +4, +6 136-8-24 [Mc] 5g11 6f3 7d1 8s2 8p2 2, 8, 18, 32, 43, 21, 9, 4
Feynmanium Fy 137 237 374 1.73 8.61 0 22.788 s 377.1256 149 1.44 624.9 +5 137-8-24 [Mc] 5g12 6f3 7d1 8s2 8p2 2, 8, 18, 32, 44, 21, 9, 4
Chadwickium Ch 138 239 377 1.73 8.63 0 16.185 h 380.1508 163 1.28 638.3 +4, +5 138-8-24 [Mc] 5g13 6f2 7d2 8s2 8p2 2, 8, 18, 32, 45, 20, 10, 4
Astonium An 139 241 380 1.73 8.66 0 14.065 ms 383.1759 142 1.53 665.2 +3, +4, +5 139-8-24 [Mc] 5g14 6f3 7d1 8s2 8p2 2, 8, 18, 32, 46, 21, 9, 4
Edisonium Ed 140 239 379 1.71 8.65 0 11.044 min 382.1664 143 1.54 678.5 +2, +4 140-8-24 [Mc] 5g15 6f2 7d2 8s2 8p2 2, 8, 18, 32, 47, 20, 10, 4
Dumasium Du 141 244 385 1.73 8.69 0 1.0410 ms 388.2176 141 1.53 687.6 +2, +3, +4, +5 141-8-24 [Mc] 5g16 6f2 7d2 8s2 8p2 2, 8, 18, 32, 48, 20, 10, 4
Butlerovium Bv 142 243 385 1.71 8.69 0 23.754 h 388.2167 140 1.58 707.2 +1, +2, +3, +4 142-8-24 [Mc] 5g17 6f2 7d2 8s2 8p2 2, 8, 18, 32, 49, 20, 10, 4
Abeggium Ab 143 248 391 1.73 8.74 0 26.244 s 394.2679 145 1.68 739.0 +1, +3 143-8-24 [Mc] 5g18 6f1 7d3 8s2 8p2 2, 8, 18, 32, 50, 19, 11, 4
Scheelium Sh 144 251 395 1.74 8.77 0 107.59 min 398.3017 139 1.71 714.7 0, +1, +2, +3, +4 144-8-24 [Mc] 5g18 6f3 7d2 8s2 8p2 2, 8, 18, 32, 50, 21, 10, 4
Heisenbergium Hi 145 253 398 1.74 8.79 0 22.488 ms 401.3269 137 1.78 743.2 0, +1, +2, +3, +4 145-8-24 [Mc] 5g18 6f3 7d2 8s2 8p2 2, 8, 18, 32, 50, 21, 10, 4
Davyum Da 146 256 402 1.75 8.82 0 18.841 h 405.3607 136 1.94 816.2 0, +2, +3 146-8-24 [Mc] 5g18 6f4 7d2 8s2 8p2 2, 8, 18, 32, 50, 22, 10, 4
Boltzmannium Bo 147 256 403 1.74 8.83 0 2.0635 s 406.3685 133 1.88 803.3 0, +1, +2, +3 147-8-24 [Mc] 5g18 6f5 7d2 8s2 8p2 2, 8, 18, 32, 50, 23, 10, 4
Faradium Fa 148 260 408 1.76 8.86 0 2.0051 min 411.4110 129 1.99 838.3 0, +2, +4 148-8-24 [Mc] 5g18 6f6 7d2 8s2 8p2 2, 8, 18, 32, 50, 24, 10, 4
Avogadrium Av 149 264 413 1.77 8.90 0 41.793 ms 416.4535 127 2.07 868.0 0, +1, +2, +3 149-8-24 [Mc] 5g18 6f6 7d3 8s2 8p2 2, 8, 18, 32, 50, 24, 11, 4
Schrodium So 150 269 419 1.79 8.94 0 5.6954 s 422.5046 129 2.22 898.8 0, +1, +2 150-8-24 [Mc] 5g18 6f6 7d4 8s2 8p2 2, 8, 18, 32, 50, 24, 12, 4
Hertzium Hr 151 274 425 1.81 8.99 0 108.11 μs 428.5558 128 2.41 989.6 0, +1 151-8-24 [Mc] 5g18 6f8 7d3 8s2 8p2 2, 8, 18, 32, 50, 26, 11, 4
Wittenium Wt 152 271 423 1.78 8.97 0 74.777 ms 426.5376 127 2.70 1135.3 0, +1, +2 152-8-24 [Mc] 5g18 6f9 7d3 8s2 8p2 2, 8, 18, 32, 50, 27, 11, 4
Diracium Dr 153 280 433 1.83 9.04 0 17.302 ms 436.6234 125 2.95 1190.2 0, +1 153-8-24 [Mc] 5g18 6f11 7d2 8s2 8p2 2, 8, 18, 32, 50, 29, 10, 4
Lewisium Le 154 283 437 1.84 9.07 0 53.588 s 440.6572 124 3.18 1257.8 0, +1, +2 154-8-24 [Mc] 5g18 6f12 7d2 8s2 8p2 2, 8, 18, 32, 50, 30, 10, 4
Vanthoffium Vh 155 285 440 1.84 9.09 0 371.63 μs 443.6824 124 2.38 954.0 0, +1, +2, +3 155-8-24 [Mc] 5g18 6f13 7d2 8s2 8p2 2, 8, 18, 32, 50, 31, 10, 4
Hawkinium Hk 156 285 441 1.83 9.10 0 98.650 s 444.6902 134 1.01 396.9 0, +2, +3, +4, +6 156-8-24 [Mc] 5g18 6f14 7d2 8s2 8p2 2, 8, 18, 32, 50, 32, 10, 4
Kelvinium Ke 157 290 447 1.85 9.14 0 22.465 ms 450.7414 122 1.25 453.2 −1, 0, +1, +2, +3, +4, +5, +6, +7 157-8-24 [Mc] 5g18 6f14 7d3 8s2 8p2 2, 8, 18, 32, 50, 32, 11, 4
Amperium Ap 158 292 450 1.85 9.16 0 35.077 min 453.7665 113 1.53 516.6 −2, −1, 0, +1, +2, +3, +4, +5, +6, +7, +8 158-8-24 [Mc] 5g18 6f14 7d4 8s2 8p2 2, 8, 18, 32, 50, 32, 12, 4
Vanderwaalsium Vw 159 295 454 1.86 9.19 0 86.964 s 457.8003 211 0.71 339.0 −1, 0, +1, +2, +3, +4, +5, +6, +7, +9 159-9-25 [Mc] 5g18 6f14 7d4 8s2 8p2 9s1 2, 8, 18, 32, 50, 32, 12, 4, 1
Hundium Hu 160 297 457 1.86 9.21 0 2.8801 h 460.8255 204 0.82 428.5 −1, 0, +1, +2, +3, +4, +5, +6, +7, +8, +10 160-9-25 [Mc] 5g18 6f14 7d5 8s2 8p2 9s1 2, 8, 18, 32, 50, 32, 13, 4, 1
Fraunhoferium Fh 161 301 462 1.87 9.24 0 28.587 s 465.8680 199 0.88 475.8 −1, 0, +1, +2, +3, +4, +5, +7, +8, +9 161-9-25 [Mc] 5g18 6f14 7d6 8s2 8p2 9s1 2, 8, 18, 32, 50, 32, 14, 4, 1
Madelungium Ma 162 298 460 1.84 9.23 0 6.4866 h 463.8498 106 1.60 562.0 −2, 0, +2, +3, +4, +6, +8 162-8-24 [Mc] 5g18 6f14 7d8 8s2 8p2 2, 8, 18, 32, 50, 32, 16, 4
Keplerium Kp 163 304 467 1.87 9.27 0 34.665 ms 470.9096 104 1.71 616.5 −1, 0, +1, +3, +5, +7 163-8-24 [Mc] 5g18 6f14 7d9 8s2 8p2 2, 8, 18, 32, 50, 32, 17, 4
Gibbium Gb 164 311 475 1.90 9.32 0 3.0228 min 478.9781 111 1.73 684.1 0, +2, +4, +6 164-8-24 [Mc] 5g18 6f14 7d10 8s2 8p2 2, 8, 18, 32, 50, 32, 18, 4
Pasturium Ps 165 316 481 1.92 9.36 0 880.38 μs 485.0292 196 1.37 518.4 +1, +3 165-8-25 [Gb] 9s1 2, 8, 18, 32, 50, 32, 18, 4, 1
Hubbium Hb 166 318 484 1.92 9.38 0 95.418 ms 488.0544 178 1.53 628.6 +1, +2, +4 166-8-25 [Gb] 9s2 2, 8, 18, 32, 50, 32, 18, 4, 2
Kirchoffium Kf 167 312 479 1.87 9.35 0 16.755 μs 483.0102 158 1.31 621.7 −1, 0, +1, +3, +5 167-9-26 [Gb] 9s2 9p1 2, 8, 18, 32, 50, 32, 18, 4, 3
Bornium Bn 168 322 490 1.92 9.42 0 12.508 ms 494.1047 156 1.70 720.5 −4, +2, 0, +4, +6 168-9-26 [Gb] 9s2 9p2 2, 8, 18, 32, 50, 32, 18, 4, 4
Joulium Ju 169 322 491 1.91 9.43 0 116.66 ns 495.1125 144 2.01 799.6 −3, −1, +1, +3, +5, +7 169-9-26 [Gb] 8p1 9s2 9p2 2, 8, 18, 32, 50, 32, 18, 5, 4
Helmholtzium Hm 170 325 495 1.91 9.45 0 3.0847 μs 499.1464 141 2.33 896.2 −2, +2, +4, +6, +8 170-9-26 [Gb] 8p2 9s2 9p2 2, 8, 18, 32, 50, 32, 18, 6, 4
Bunsenium Bu 171 327 498 1.91 9.47 0 1.4163 ns 502.1715 136 2.41 987.2 −1, +1, +3, +5, +7 171-9-26 [Gb] 8p3 9s2 9p2 2, 8, 18, 32, 50, 32, 18, 7, 4
Ramsium Rs 172 332 504 1.93 9.51 0 162.31 ns 508.2227 139 2.82 1093.8 −4, 0, +2, +4, +6, +8 172-9-26 [Gb] 8p4 9s2 9p2 2, 8, 18, 32, 50, 32, 18, 8, 4
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