Ref. 1 "Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides." R. D. Shannon Acta Cryst. (1976) A32, 751-767. Ref. 2 "Electronic Table of Shannon Ionic Radii, J. David Van Horn, 2001, downloaded MO/DA/YEAR." Record # ION Oxidation State Electronic Configuration Coordination Number Spin State Crystal Radius Ionic Radius NOTES Charge to Ionic Radius Ratio 1 Ac +3 3 6p 6 6 1.26 1.12 R 2.678571429 2 Ag +1 1 4d 10 2 0.81 0.67 1.492537313 3 Ag +1 1 4d 10 4 1.14 1 C 1 4 Ag +1 1 4d 10 4 1.16 1.02 0.980392157 5 Ag +1 1 4d 10 5 1.23 1.09 C 0.917431193 6 Ag +1 1 4d 10 6 1.29 1.15 C 0.869565217 7 Ag +1 1 4d 10 7 1.36 1.22 0.819672131 8 Ag +1 1 4d 10 8 1.42 1.28 0.78125 9 Ag +2 2 4d 9 4 0.93 0.79 2.53164557 10 Ag +2 2 4d 9 6 1.08 0.94 2.127659574 11 Ag +3 3 4d 8 4 0.81 0.67 4.47761194 12 Ag +3 3 4d 8 6 0.89 0.75 R 4 13 Al +3 3 2p 6 4 0.53 0.39 * 7.692307692 14 Al +3 3 2p 6 5 0.62 0.48 6.25 15 Al +3 3 2p 6 6 0.675 0.535 R * 5.607476636 16 Am +2 2 5f 7 7 1.35 1.21 1.652892562 17 Am +2 2 5f 7 8 1.4 1.26 1.587301587 18 Am +2 2 5f 7 9 1.45 1.31 1.526717557 19 Am +3 3 5f 6 6 1.115 0.975 R 3.076923077 20 Am +3 3 5f 6 8 1.23 1.09 2.752293578 21 Am +4 4 5f 5 6 0.99 0.85 R 4.705882353 22 Am +4 4 5f 5 8 1.09 0.95 4.210526316 23 As +3 3 4s 2 6 0.72 0.58 A 5.172413793 24 As +5 5 3d 10 4 0.475 0.335 R * 14.92537313 25 As +5 5 3d 10 6 0.6 0.46 C * 10.86956522 26 At +7 7 5d 10 6 0.76 0.62 A 11.29032258 27 Au +1 1 5d 10 6 1.51 1.37 A 0.729927007 28 Au +3 3 5d 8 4 0.82 0.68 4.411764706 29 Au +3 3 5d 8 6 0.99 0.85 A 3.529411765 30 Au +5 5 5d 6 6 0.71 0.57 8.771929825 31 B +3 3 1s 2 3 0.15 0.01 * 300 32 B +3 3 1s 2 4 0.25 0.11 * 27.27272727 33 B +3 3 1s 2 6 0.41 0.27 C 11.11111111 34 Ba +2 2 5p 6 6 1.49 1.35 1.481481481 35 Ba +2 2 5p 6 7 1.52 1.38 C 1.449275362 36 Ba +2 2 5p 6 8 1.56 1.42 1.408450704 37 Ba +2 2 5p 6 9 1.61 1.47 1.360544218 38 Ba +2 2 5p 6 10 1.66 1.52 1.315789474 39 Ba +2 2 5p 6 11 1.71 1.57 1.27388535 40 Ba +2 2 5p 6 12 1.75 1.61 C 1.242236025 41 Be +2 2 1s 2 3 0.3 0.16 12.5 42 Be +2 2 1s 2 4 0.41 0.27 * 7.407407407 43 Be +2 2 1s 2 6 0.59 0.45 C 4.444444444 44 Bi +3 3 6s 2 5 1.1 0.96 C 3.125 45 Bi +3 3 6s 2 6 1.17 1.03 R * 2.912621359 46 Bi +3 3 6s 2 8 1.31 1.17 R 2.564102564 47 Bi +5 5 5d 10 6 0.9 0.76 E 6.578947368 48 Bk +3 3 5f 8 6 1.1 0.96 R 3.125 49 Bk +4 4 5f 7 6 0.97 0.83 R 4.819277108 50 Bk +4 4 5f 7 8 1.07 0.93 R 4.301075269 51 Br -1 -1 4p 6 6 1.82 1.96 P -0.510204082 52 Br +3 3 4p 2 4 0.73 0.59 5.084745763 53 Br +5 5 4s 2 3 0.45 0.31 16.12903226 54 Br +7 7 3d 10 4 0.39 0.25 28 55 Br +7 7 3d 10 6 0.53 0.39 A 17.94871795 56 C +4 4 1s 2 3 0.06 -0.08 -50 57 C +4 4 1s 2 4 0.29 0.15 P 26.66666667 58 C +4 4 1s 2 6 0.3 0.16 A 25 59 Ca +2 2 3p 6 6 1.14 1 2 60 Ca +2 2 3p 6 7 1.2 1.06 * 1.886792453 61 Ca +2 2 3p 6 8 1.26 1.12 * 1.785714286 62 Ca +2 2 3p 6 9 1.32 1.18 1.694915254 63 Ca +2 2 3p 6 10 1.37 1.23 C 1.62601626 64 Ca +2 2 3p 6 12 1.4 1.34 C 1.492537313 65 Cd +2 2 4d 10 4 0.92 0.78 2.564102564 66 Cd +2 2 4d 10 5 1.01 0.87 2.298850575 67 Cd +2 2 4d 10 6 1.09 0.95 2.105263158 68 Cd +2 2 4d 10 7 1.17 1.03 C 1.941747573 69 Cd +2 2 4d 10 8 1.24 1.1 C 1.818181818 70 Cd +2 2 4d 10 12 1.45 1.31 1.526717557 71 Ce +3 3 6s 1 6 1.15 1.01 R 2.97029703 72 Ce +3 3 6s 1 7 1.21 1.07 E 2.803738318 73 Ce +3 3 6s 1 8 1.283 1.143 R 2.624671916 74 Ce +3 3 6s 1 9 1.336 1.196 R 2.508361204 75 Ce +3 3 6s 1 10 1.39 1.25 2.4 76 Ce +3 3 6s 1 12 1.48 1.34 C 2.23880597 77 Ce +4 4 5p 6 6 1.01 0.87 R 4.597701149 78 Ce +4 4 5p 6 8 1.11 0.97 R 4.12371134 79 Ce +4 4 5p 6 10 1.21 1.07 3.738317757 80 Ce +4 4 5p 6 12 1.28 1.14 3.50877193 81 Cf +3 3 6d 1 6 1.09 0.95 R 3.157894737 82 Cf +4 4 5f 8 6 0.961 0.821 R 4.872107186 83 Cf +4 4 5f 8 8 1.06 0.92 4.347826087 84 Cl-1 -1 3p 6 6 1.67 1.81 P -0.552486188 85 Cl+5 5 3s 2 3 0.26 0.12 41.66666667 86 Cl+7 7 2p 6 4 0.22 0.08 * 87.5 87 Cl+7 7 2p 6 6 0.41 0.27 A 25.92592593 88 Cm+3 3 5f 7 4 1.11 0.97 R 3.092783505 89 Cm+4 4 5f 6 4 0.99 0.85 R 4.705882353 90 Cm+4 4 5f 6 8 1.09 0.95 R 4.210526316 91 Co+2 2 3d 7 4 HS 0.72 0.58 3.448275862 92 Co+2 2 3d 7 5 0.81 0.67 C 2.985074627 93 Co+2 2 3d 7 6 LS 0.79 0.65 R 3.076923077 94 Co+2 2 3d 7 6 HS 0.885 0.745 R* 2.684563758 95 Co+2 2 3d 7 8 1.04 0.9 2.222222222 96 Co+3 3 3d 6 6 LS 0.685 0.545 R* 5.504587156 97 Co+3 3 3d 6 6 HS 0.75 0.61 4.918032787 98 Co+4 4 3d 5 4 0.54 0.4 10 99 Co+4 4 3d 5 6 HS 0.67 0.53 R 7.547169811 100 Cr+2 2 3d 4 6 LS 0.87 0.73 E 2.739726027 101 Cr+2 2 3d 4 6 HS 0.94 0.8 R 2.5 102 Cr+3 3 3d 3 6 0.755 0.615 R* 4.87804878 103 Cr+4 4 3d 2 4 0.55 0.41 9.756097561 104 Cr+4 4 3d 2 6 0.69 0.55 R 7.272727273 105 Cr+5 5 3d 1 4 0.485 0.345 R 14.49275362 106 Cr+5 5 3d 1 6 0.63 0.49 ER 10.20408163 107 Cr+5 5 3d 1 8 0.71 0.57 8.771929825 108 Cr+6 6 3p 6 4 0.4 0.26 23.07692308 109 Cr+6 6 3p 6 6 0.58 0.44 C 13.63636364 110 Cs+1 1 5p 6 6 1.81 1.67 0.598802395 111 Cs+1 1 5p 6 8 1.88 1.74 0.574712644 112 Cs+1 1 5p 6 9 1.92 1.78 0.561797753 113 Cs+1 1 5p 6 10 1.95 1.81 0.552486188 114 Cs+1 1 5p 6 11 1.99 1.85 0.540540541 115 Cs+1 1 5p 6 12 2.02 1.88 0.531914894 116 Cu+1 1 3d 10 2 0.6 0.46 2.173913043 117 Cu+1 1 3d 10 4 0.74 0.6 E 1.666666667 118 Cu+1 1 3d 10 6 0.91 0.77 E 1.298701299 119 Cu+2 2 3d 9 4 0.71 0.57 3.50877193 120 Cu+2 2 3d 9 4 0.71 0.57 * 3.50877193 121 Cu+2 2 3d 9 5 0.79 0.65 * 3.076923077 122 Cu+2 2 3d 9 6 0.87 0.73 2.739726027 123 Cu+3 3 3d 8 6 LS 0.68 0.54 5.555555556 124 D+1 1 1s 0 2 0.04 -0.1 -10 125 Dy+2 2 4f 10 6 1.21 1.07 1.869158879 126 Dy+2 2 4f 10 7 1.27 1.13 1.769911504 127 Dy+2 2 4f 10 8 1.33 1.19 1.680672269 128 Dy+3 3 4f 9 6 1.052 0.912 R 3.289473684 129 Dy+3 3 4f 9 7 1.11 0.97 3.092783505 130 Dy+3 3 4f 9 8 1.167 1.027 R 2.921129503 131 Dy+3 3 4f 9 9 1.223 1.083 R 2.770083102 132 Er+3 3 4f 11 6 1.03 0.89 R 3.370786517 133 Er+3 3 4f 11 7 1.085 0.945 3.174603175 134 Er+3 3 4f 11 8 1.144 1.004 R 2.988047809 135 Er+3 3 4f 11 9 1.202 1.062 R 2.824858757 136 Eu+2 2 4f 7 6 1.31 1.17 1.709401709 137 Eu+2 2 4f 7 7 1.34 1.2 1.666666667 138 Eu+2 2 4f 7 8 1.39 1.25 1.6 139 Eu+2 2 4f 7 9 1.44 1.3 1.538461538 140 Eu+2 2 4f 7 10 1.49 1.35 1.481481481 141 Eu+3 3 4f 6 6 1.087 0.947 R 3.167898627 142 Eu+3 3 4f 6 7 1.15 1.01 2.97029703 143 Eu+3 3 4f 6 8 1.206 1.066 R 2.814258912 144 Eu+3 3 4f 6 9 1.26 1.12 R 2.678571429 145 F-1 -1 2p 6 2 1.145 1.285 -0.778210117 146 F-1 -1 2p 6 3 1.16 1.3 -0.769230769 147 F-1 -1 2p 6 4 1.17 1.31 -0.763358779 148 F-1 -1 2p 6 6 1.19 1.33 -0.751879699 149 F+7 7 1s 2 6 0.22 0.08 A 87.5 150 Fe+2 2 3d 6 4 HS 0.77 0.63 3.174603175 151 Fe+2 2 3d 6 4 HS 0.78 0.64 3.125 152 Fe+2 2 3d 6 6 LS 0.75 0.61 E 3.278688525 153 Fe+2 2 3d 6 6 HS 0.92 0.78 R* 2.564102564 154 Fe+2 2 3d 6 8 HS 1.06 0.92 C 2.173913043 155 Fe+3 3 3d 5 4 HS 0.63 0.49 * 6.12244898 156 Fe+3 3 3d 5 5 0.72 0.58 5.172413793 157 Fe+3 3 3d 5 6 LS 0.69 0.55 R 5.454545455 158 Fe+3 3 3d 5 6 HS 0.785 0.645 R* 4.651162791 159 Fe+3 3 3d 5 8 HS 0.92 0.78 3.846153846 160 Fe+4 4 3d 4 6 0.725 0.585 R 6.837606838 161 Fe+6 6 3d2 4 0.39 0.25 R 24 162 Fr+1 1 6p 6 6 1.94 1.8 A 0.555555556 163 Ga+3 3 3d 10 4 0.61 0.47 * 6.382978723 164 Ga+3 3 3d 10 5 0.69 0.55 5.454545455 165 Ga+3 3 3d 10 6 0.76 0.62 R* 4.838709677 166 Gd+3 3 4f 7 6 1.078 0.938 R 3.198294243 167 Gd+3 3 4f 7 7 1.14 1 3 168 Gd+3 3 4f 7 8 1.193 1.053 R 2.849002849 169 Gd+3 3 4f 7 9 1.247 1.107 RC 2.7100271 170 Ge+2 2 4s 2 6 0.87 0.73 A 2.739726027 171 Ge+4 4 3d 10 4 0.53 0.39 * 10.25641026 172 Ge+4 4 3d 10 6 0.67 0.53 R* 7.547169811 173 H+1 1 1s 0 1 -0.24 -0.38 -2.631578947 174 H+1 1 1s 0 2 -0.04 -0.18 -5.555555556 175 Hf+4 4 4f 14 4 0.72 0.58 R 6.896551724 176 Hf+4 4 4f 14 6 0.85 0.71 R 5.633802817 177 Hf+4 4 4f 14 7 0.9 0.76 5.263157895 178 Hf+4 4 4f 14 8 0.97 0.83 4.819277108 179 Hg+1 1 6s 1 3 1.11 0.97 1.030927835 180 Hg+1 1 6s 1 6 1.33 1.19 0.840336134 181 Hg+2 2 5d 10 2 0.83 0.69 2.898550725 182 Hg+2 2 5d 10 4 1.1 0.96 2.083333333 183 Hg+2 2 5d 10 6 1.16 1.02 1.960784314 184 Hg+2 2 5d 10 8 1.28 1.14 R 1.754385965 185 Ho+3 3 4f 10 6 1.041 0.901 R 3.32963374 186 Ho+3 3 4f 10 8 1.155 1.015 R 2.955665025 187 Ho+3 3 4f 10 9 1.212 1.072 R 2.798507463 188 Ho+3 3 4f 10 10 1.26 1.12 2.678571429 189 I-1 -1 5p 6 6 2.06 2.2 A -0.454545455 190 I+5 5 5s 2 3 0.58 0.44 * 11.36363636 191 I+5 5 5s 2 6 1.09 0.95 5.263157895 192 I+7 7 4d 10 4 0.56 0.42 16.66666667 193 I+7 7 4d 10 6 0.67 0.53 13.20754717 194 In+3 3 4d 10 4 0.76 0.62 4.838709677 195 In+3 3 4d 10 6 0.94 0.8 R* 3.75 196 In+3 3 4d 10 8 1.06 0.92 RC 3.260869565 197 Ir+3 3 5d 6 6 0.82 0.68 E 4.411764706 198 Ir+4 4 5d 5 6 0.765 0.625 R 6.4 199 Ir+5 5 5d 4 6 0.71 0.57 EM 8.771929825 200 K+1 1 3p 6 4 1.51 1.37 0.729927007 201 K+1 1 3p 6 6 1.52 1.38 0.724637681 202 K+1 1 3p 6 7 1.6 1.46 0.684931507 203 K+1 1 3p 6 8 1.65 1.51 0.662251656 204 K+1 1 3p 6 9 1.69 1.55 0.64516129 205 K+1 1 3p 6 10 1.73 1.59 0.628930818 206 K+1 1 3p 6 12 1.78 1.64 0.609756098 207 La+3 3 4d 10 6 1.172 1.032 R 2.906976744 208 La+3 3 4d 10 7 1.24 1.1 2.727272727 209 La+3 3 4d 10 8 1.3 1.16 R 2.586206897 210 La+3 3 4d 10 9 1.356 1.216 R 2.467105263 211 La+3 3 4d 10 10 1.41 1.27 2.362204724 212 La+3 3 4d 10 12 1.5 1.36 C 2.205882353 213 Li+1 1 1s 2 4 0.73 0.59 * 1.694915254 214 Li+1 1 1s 2 6 0.9 0.76 * 1.315789474 215 Li+1 1 1s 2 8 1.06 0.92 C 1.086956522 216 Lu+3 3 4f 14 6 1.001 0.861 R 3.484320557 217 Lu+3 3 4f 14 8 1.117 0.977 R 3.07062436 218 Lu+3 3 4f 14 9 1.172 1.032 R 2.906976744 219 Mg+2 2 2p 6 4 0.71 0.57 3.50877193 220 Mg+2 2 2p 6 5 0.8 0.66 3.03030303 221 Mg+2 2 2p 6 6 0.86 0.72 * 2.777777778 222 Mg+2 2 2p 6 8 1.03 0.89 C 2.247191011 223 Mn+2 2 3d 5 4 HS 0.8 0.66 3.03030303 224 Mn+2 2 3d 5 5 HS 0.89 0.75 C 2.666666667 225 Mn+2 2 3d 5 6 LS 0.81 0.67 E 2.985074627 226 Mn+2 2 3d 5 6 HS 0.97 0.83 R* 2.409638554 227 Mn+2 2 3d 5 7 HS 1.04 0.9 C 2.222222222 228 Mn+2 2 3d 5 8 1.1 0.96 R 2.083333333 229 Mn+3 3 3d 4 5 0.72 0.58 5.172413793 230 Mn+3 3 3d 4 6 LS 0.72 0.58 R 5.172413793 231 Mn+3 3 3d 4 6 HS 0.785 0.645 R* 4.651162791 232 Mn+4 4 3d 3 4 0.53 0.39 R 10.25641026 233 Mn+4 4 3d 3 6 0.67 0.53 R* 7.547169811 234 Mn+5 5 3d 2 4 0.47 0.33 R 15.15151515 235 Mn+6 6 3d 1 4 0.395 0.255 23.52941176 236 Mn+7 7 3p 6 4 0.39 0.25 28 237 Mn+7 7 3p 6 6 0.6 0.46 A 15.2173913 238 Mo+3 3 4d 3 6 0.83 0.69 E 4.347826087 239 Mo+4 4 4d 2 6 0.79 0.65 RM 6.153846154 240 Mo+5 5 4d 1 4 0.6 0.46 R 10.86956522 241 Mo+5 5 4d 1 6 0.75 0.61 R 8.196721311 242 Mo+6 6 4p 6 4 0.55 0.41 R* 14.63414634 243 Mo+6 6 4p 6 5 0.64 0.5 12 244 Mo+6 6 4p 6 6 0.73 0.59 R* 10.16949153 245 Mo+6 6 4p 6 7 0.87 0.73 8.219178082 246 N-3 -3 2p 6 4 1.32 1.46 -2.054794521 247 N+3 3 2s 2 6 0.3 0.16 A 18.75 248 N+5 5 1s 2 3 0.044 -0.104 -48.07692308 249 N+5 5 1s 2 4 0.27 0.13 A 38.46153846 250 Na+1 1 2p 6 4 1.13 0.99 1.01010101 251 Na+1 1 2p 6 5 1.14 1 1 252 Na+1 1 2p 6 6 1.16 1.02 0.980392157 253 Na+1 1 2p 6 7 1.26 1.12 0.892857143 254 Na+1 1 2p 6 8 1.32 1.18 0.847457627 255 Na+1 1 2p 6 9 1.38 1.24 C 0.806451613 256 Na+1 1 2p 6 12 1.53 1.39 0.71942446 257 Nb+3 3 4d 2 6 0.86 0.72 4.166666667 258 Nb+4 4 4d 1 6 0.82 0.68 RE 5.882352941 259 Nb+4 4 4d 1 8 0.93 0.79 5.063291139 260 Nb+5 5 4p 6 4 0.62 0.48 C 10.41666667 261 Nb+5 5 4p 6 6 0.78 0.64 7.8125 262 Nb+5 5 4p 6 7 0.83 0.69 C 7.246376812 263 Nb+5 5 4p 6 8 0.88 0.74 6.756756757 264 Nd+2 2 4f 4 8 1.43 1.29 1.550387597 265 Nd+2 2 4f 4 9 1.49 1.35 1.481481481 266 Nd+3 3 4f 3 6 1.123 0.983 R 3.051881994 267 Nd+3 3 4f 3 8 1.249 1.109 R* 2.705139766 268 Nd+3 3 4f 3 9 1.303 1.163 R 2.579535684 269 Nd+3 3 4f 3 12 1.41 1.27 E 2.362204724 270 Ni+2 2 3d 8 4 0.69 0.55 3.636363636 271 Ni+2 2 3d 8 4 0.63 0.49 4.081632653 272 Ni+2 2 3d 8 5 0.77 0.63 E 3.174603175 273 Ni+2 2 3d 8 6 0.83 0.69 R* 2.898550725 274 Ni+3 3 3d 7 6 LS 0.7 0.56 R* 5.357142857 275 Ni+3 3 3d 7 6 HS 0.74 0.6 E 5 276 Ni+4 4 3d 6 6 LS 0.62 0.48 R 8.333333333 277 No+2 2 5f 14 6 1.24 1.1 E 1.818181818 278 Np+2 2 5f 5 6 1.24 1.1 1.818181818 279 Np+3 3 5f 4 6 1.15 1.01 2.97029703 280 Np+4 4 5f 3 6 1.01 0.87 R 4.597701149 281 Np+4 4 5f 3 8 1.12 0.98 R 4.081632653 282 Np+5 5 5f 2 6 0.89 0.75 R 6.666666667 283 Np+6 6 5f 1 6 0.86 0.72 8.333333333 284 Np+7 7 6p 6 6 0.85 0.71 R 9.85915493 285 O-2 -2 2p 6 2 1.21 1.35 A -1.481481481 286 O-2 -2 2p 6 3 1.22 1.36 -1.470588235 287 O-2 -2 2p 6 4 1.24 1.38 -1.449275362 288 O-2 -2 2p 6 6 1.26 1.4 -1.428571429 289 O-2 -2 2p 6 8 1.28 1.42 -1.408450704 290 OH-1 -1 2 1.18 1.32 -0.757575758 291 OH-1 -1 3 1.2 1.34 -0.746268657 292 OH-1 -1 4 1.21 1.35 E -0.740740741 293 OH-1 -1 6 1.23 1.37 E -0.729927007 294 Os+4 4 5d 4 6 0.77 0.63 RM 6.349206349 295 Os+5 5 5d 3 6 0.715 0.575 E 8.695652174 296 Os+6 6 5d 2 5 0.63 0.49 12.24489796 297 Os+6 6 5d 2 6 0.685 0.545 E 11.00917431 298 Os+7 7 5d 1 6 0.665 0.525 E 13.33333333 299 Os+8 8 5p 6 4 0.53 0.39 20.51282051 300 P+3 3 3s 2 6 0.58 0.44 A 6.818181818 301 P+5 5 2p 6 4 0.31 0.17 * 29.41176471 302 P+5 5 2p 6 5 0.43 0.29 17.24137931 303 P+5 5 2p 6 6 0.52 0.38 C 13.15789474 304 Pa+3 3 5f 2 6 1.18 1.04 E 2.884615385 305 Pa+4 4 6d 1 6 1.04 0.9 R 4.444444444 306 Pa+4 4 6d 1 8 1.15 1.01 3.96039604 307 Pa+5 5 6p 6 6 0.92 0.78 6.41025641 308 Pa+5 5 6p 6 8 1.05 0.91 5.494505495 309 Pa+5 5 6p 6 9 1.09 0.95 5.263157895 310 Pb+2 2 6s 2 4 1.12 0.98 C 2.040816327 311 Pb+2 2 6s 2 6 1.33 1.19 1.680672269 312 Pb+2 2 6s 2 7 1.37 1.23 C 1.62601626 313 Pb+2 2 6s 2 8 1.43 1.29 C 1.550387597 314 Pb+2 2 6s 2 9 1.49 1.35 C 1.481481481 315 Pb+2 2 6s 2 10 1.54 1.4 C 1.428571429 316 Pb+2 2 6s 2 11 1.59 1.45 C 1.379310345 317 Pb+2 2 6s 2 12 1.63 1.49 1.342281879 318 Pb+4 4 5d 10 4 0.79 0.65 E 6.153846154 319 Pb+4 4 5d 10 5 0.87 0.73 E 5.479452055 320 Pb+4 4 5d 10 6 0.915 0.775 R 5.161290323 321 Pb+4 4 5d 10 8 1.08 0.94 R 4.255319149 322 Pd+1 1 4d 9 2 0.73 0.59 1.694915254 323 Pd+2 2 4d 8 4 0.78 0.64 3.125 324 Pd+2 2 4d 8 6 1 0.86 2.325581395 325 Pd+3 3 4d 7 6 0.9 0.76 3.947368421 326 Pd+4 4 4d 6 6 0.755 0.615 R 6.504065041 327 Pm+3 3 4f 4 6 1.11 0.97 R 3.092783505 328 Pm+3 3 4f 4 8 1.233 1.093 R 2.74473925 329 Pm+3 3 4f 4 9 1.284 1.144 R 2.622377622 330 Po+4 4 6s 2 6 1.08 0.94 R 4.255319149 331 Po+4 4 6s 2 8 1.22 1.08 R 3.703703704 332 Po+6 6 5d 10 6 0.81 0.67 A 8.955223881 333 Pr+3 3 4f 2 6 1.13 0.99 R 3.03030303 334 Pr+3 3 4f 2 8 1.266 1.126 R 2.664298401 335 Pr+3 3 4f 2 9 1.319 1.179 R 2.544529262 336 Pr+4 4 4f 1 6 0.99 0.85 R 4.705882353 337 Pr+4 4 4f 1 8 1.1 0.96 R 4.166666667 338 Pt+2 2 5d 8 4 0.74 0.6 3.333333333 339 Pt+2 2 5d 8 6 0.94 0.8 A 2.5 340 Pt+4 4 5d 6 6 0.765 0.625 R 6.4 341 Pt+5 5 5d 5 6 0.71 0.57 ER 8.771929825 342 Pu+3 3 5f 5 6 1.14 1 R 3 343 Pu+4 4 5f 4 6 1 0.86 R 4.651162791 344 Pu+4 4 5f 4 8 1.1 0.96 4.166666667 345 Pu+5 5 5f 3 6 0.88 0.74 E 6.756756757 346 Pu+6 6 5f 2 6 0.85 0.71 R 8.450704225 347 Ra+2 2 6p 6 8 1.62 1.48 R 1.351351351 348 Ra+2 2 6p 6 12 1.84 1.7 R 1.176470588 349 Rb+1 1 4p 6 6 1.66 1.52 0.657894737 350 Rb+1 1 4p 6 7 1.7 1.56 0.641025641 351 Rb+1 1 4p 6 8 1.75 1.61 0.621118012 352 Rb+1 1 4p 6 9 1.77 1.63 E 0.613496933 353 Rb+1 1 4p 6 10 1.8 1.66 0.602409639 354 Rb+1 1 4p 6 11 1.83 1.69 0.591715976 355 Rb+1 1 4p 6 12 1.86 1.72 0.581395349 356 Rb+1 1 4p 6 14 1.97 1.83 0.546448087 357 Re+4 4 5d 3 6 0.77 0.63 RM 6.349206349 358 Re+5 5 5d 2 6 0.72 0.58 E 8.620689655 359 Re+6 6 5d 1 6 0.69 0.55 E 10.90909091 360 Re+7 7 5p 6 4 0.52 0.38 18.42105263 361 Re+7 7 5p 6 6 0.67 0.53 13.20754717 362 Rh+3 3 4d 6 6 0.805 0.665 R 4.511278195 363 Rh+4 4 4d 5 6 0.74 0.6 RM 6.666666667 364 Rh+5 5 4d 4 6 0.69 0.55 9.090909091 365 Ru+3 3 4d 5 6 0.82 0.68 4.411764706 366 Ru+4 4 4d 4 6 0.76 0.62 RM 6.451612903 367 Ru+5 5 4d 3 6 0.705 0.565 ER 8.849557522 368 Ru+7 7 4d 1 4 0.52 0.38 18.42105263 369 Ru+8 8 4p 6 4 0.5 0.36 22.22222222 370 S-2 -2 3p 6 6 1.7 1.84 P -1.086956522 371 S+4 4 3s 2 6 0.51 0.37 A 10.81081081 372 S+6 6 2p 6 4 0.26 0.12 * 50 373 S+6 6 2p 6 6 0.43 0.29 C 20.68965517 374 Sb+3 3 5s 2 4 0.9 0.74 4.054054054 375 Sb+3 3 5s 2 5 0.94 0.8 3.75 376 Sb+3 3 5s 2 6 0.9 0.76 A 3.947368421 377 Sb+5 5 4d 10 6 0.74 0.6 * 8.333333333 378 Sc+3 3 3p 6 6 0.885 0.745 R* 4.026845638 379 Sc+3 3 3p 6 8 1.01 0.87 R* 3.448275862 380 Se-2 -2 4p 6 6 1.84 1.98 P -1.01010101 381 Se+4 4 4s 2 6 0.64 0.5 A 8 382 Se+6 6 3d 10 4 0.42 0.28 * 21.42857143 383 Se+6 6 3d 10 6 0.56 0.42 C 14.28571429 384 Si+4 4 2p 6 4 0.4 0.26 * 15.38461538 385 Si+4 4 2p 6 6 0.54 0.4 R* 10 386 Sm+2 2 4f 6 7 1.36 1.22 1.639344262 387 Sm+2 2 4f 6 8 1.41 1.27 1.57480315 388 Sm+2 2 4f 6 9 1.46 1.32 1.515151515 389 Sm+3 3 4f 5 6 1.098 0.958 R 3.131524008 390 Sm+3 3 4f 5 7 1.16 1.02 E 2.941176471 391 Sm+3 3 4f 5 8 1.219 1.079 R 2.780352178 392 Sm+3 3 4f 5 9 1.272 1.132 R 2.650176678 393 Sm+3 3 4f 5 12 1.38 1.24 C 2.419354839 394 Sn+4 4 4d 10 4 0.69 0.55 R 7.272727273 395 Sn+4 4 4d 10 5 0.76 0.62 C 6.451612903 396 Sn+4 4 4d 10 6 0.83 0.69 R* 5.797101449 397 Sn+4 4 4d 10 7 0.89 0.75 5.333333333 398 Sn+4 4 4d 10 8 0.95 0.81 C 4.938271605 399 Sr+2 2 4p 6 6 1.32 1.18 1.694915254 400 Sr+2 2 4p 6 7 1.35 1.21 1.652892562 401 Sr+2 2 4p 6 8 1.4 1.26 1.587301587 402 Sr+2 2 4p 6 9 1.45 1.31 1.526717557 403 Sr+2 2 4p 6 10 1.5 1.36 C 1.470588235 404 Sr+2 2 4p 6 12 1.58 1.44 C 1.388888889 405 Ta+3 3 5d 2 6 0.86 0.72 E 4.166666667 406 Ta+4 4 5d 1 6 0.82 0.68 E 5.882352941 407 Ta+5 5 5p 6 6 0.78 0.64 7.8125 408 Ta+5 5 5p 6 7 0.83 0.69 7.246376812 409 Ta+5 5 5p 6 8 0.88 0.74 6.756756757 410 Tb+3 3 4f 8 6 1.063 0.923 R 3.250270856 411 Tb+3 3 4f 8 7 1.12 0.98 E 3.06122449 412 Tb+3 3 4f 8 8 1.18 1.04 R 2.884615385 413 Tb+3 3 4f 8 9 1.235 1.095 R 2.739726027 414 Tb+4 4 4f 7 6 0.9 0.76 R 5.263157895 415 Tb+4 4 4f 7 8 1.02 0.88 4.545454545 416 Tc+4 4 4d 3 6 0.785 0.645 RM 6.201550388 417 Tc+5 5 4d 2 6 0.74 0.6 ER 8.333333333 418 Tc+7 7 4p 6 4 0.51 0.37 18.91891892 419 Tc+7 7 4p 6 6 0.7 0.56 A 12.5 420 Te(-2) -2 5p 6 6 2.07 2.21 P -0.904977376 421 Te+4 4 5s 2 3 0.66 0.52 7.692307692 422 Te+4 4 5s 2 4 0.8 0.66 6.060606061 423 Te+4 4 5s 2 6 1.11 0.97 4.12371134 424 Te+6 6 4d 10 4 0.57 0.43 C 13.95348837 425 Te+6 6 4d 10 6 0.7 0.56 * 10.71428571 426 Th+4 4 6p 6 6 1.08 0.94 C 4.255319149 427 Th+4 4 6p 6 8 1.19 1.05 RC 3.80952381 428 Th+4 4 6p 6 9 1.23 1.09 * 3.669724771 429 Th+4 4 6p 6 10 1.27 1.13 E 3.539823009 430 Th+4 4 6p 6 11 1.32 1.18 C 3.389830508 431 Th+4 4 6p 6 12 1.35 1.21 C 3.305785124 432 Ti+2 2 3d 2 6 1 0.86 E 2.325581395 433 Ti+3 3 3d 1 6 0.81 0.67 R* 4.47761194 434 Ti+4 4 3p 6 4 0.56 0.42 C 9.523809524 435 Ti+4 4 3p 6 5 0.65 0.51 C 7.843137255 436 Ti+4 4 3p 6 6 0.745 0.605 R* 6.611570248 437 Ti+4 4 3p 6 8 0.88 0.74 C 5.405405405 438 Tl+1 1 6s 2 6 1.64 1.5 R 0.666666667 439 Tl+1 1 6s 2 8 1.73 1.59 R 0.628930818 440 Tl+1 1 6s 2 12 1.84 1.7 RE 0.588235294 441 Tl+3 3 5d 10 4 0.89 0.75 4 442 Tl+3 3 5d 10 6 1.025 0.885 R 3.389830508 443 Tl+3 3 5d 10 8 1.12 0.98 C 3.06122449 444 Tm+2 2 4f 13 6 1.17 1.03 1.941747573 445 Tm+2 2 4f 13 7 1.23 1.09 1.834862385 446 Tm+3 3 4f 12 6 1.02 0.88 R 3.409090909 447 Tm+3 3 4f 12 8 1.134 0.994 R 3.018108652 448 Tm+3 3 4f 12 9 1.192 1.052 R 2.851711027 449 U+3 3 5f 3 6 1.165 1.025 R 2.926829268 450 U+4 4 5f 2 6 1.03 0.89 4.494382022 451 U+4 4 5f 2 7 1.09 0.95 E 4.210526316 452 U+4 4 5f 2 8 1.14 1 R* 4 453 U+4 4 5f 2 9 1.19 1.05 3.80952381 454 U+4 4 5f 2 12 1.31 1.17 E 3.418803419 455 U+5 5 5f 1 6 0.9 0.76 6.578947368 456 U+5 5 5f 1 7 0.98 0.84 E 5.952380952 457 U+6 6 6p 6 2 0.59 0.45 13.33333333 458 U+6 6 6p 6 4 0.66 0.52 11.53846154 459 U+6 6 6p 6 6 0.87 0.73 * 8.219178082 460 U+6 6 6p 6 7 0.95 0.81 E 7.407407407 461 U+6 6 6p 6 8 1 0.86 6.976744186 462 V+2 2 3d 3 6 0.93 0.79 2.53164557 463 V+3 3 3d 2 6 0.78 0.64 R* 4.6875 464 V+4 4 3d 1 5 0.67 0.53 7.547169811 465 V+4 4 3d 1 6 0.72 0.58 R* 6.896551724 466 V+4 4 3d 1 8 0.86 0.72 E 5.555555556 467 V+5 5 3p 6 4 0.495 0.355 R* 14.08450704 468 V+5 5 3p 6 5 0.6 0.46 * 10.86956522 469 V+5 5 3p 6 6 0.68 0.54 9.259259259 470 W+4 4 5d 2 6 0.8 0.66 RM 6.060606061 471 W+5 5 5d 1 6 0.76 0.62 R 8.064516129 472 W+6 6 5p 6 4 0.56 0.42 * 14.28571429 473 W+6 6 5p 6 5 0.65 0.51 11.76470588 474 W+6 6 5p 6 6 0.74 0.6 * 10 475 Xe+8 8 4d 10 4 0.54 0.4 20 476 Xe+8 8 4d 10 6 0.62 0.48 16.66666667 477 Y+3 3 4p 6 6 1.04 0.9 R* 3.333333333 478 Y+3 3 4p 6 7 1.1 0.96 3.125 479 Y+3 3 4p 6 8 1.159 1.019 R* 2.944062807 480 Y+3 3 4p 6 9 1.215 1.075 R 2.790697674 481 Yb+2 2 4f 14 6 1.16 1.02 1.960784314 482 Yb+2 2 4f 14 7 1.22 1.08 E 1.851851852 483 Yb+2 2 4f 14 8 1.28 1.14 1.754385965 484 Yb+3 3 4f 13 6 1.008 0.868 R* 3.456221198 485 Yb+3 3 4f 13 7 1.065 0.925 E 3.243243243 486 Yb+3 3 4f 13 8 1.125 0.985 R 3.045685279 487 Yb+3 3 4f 13 9 1.182 1.042 R 2.879078695 488 Zn+2 2 3d 10 4 0.74 0.6 * 3.333333333 489 Zn+2 2 3d 10 5 0.82 0.68 * 2.941176471 490 Zn+2 2 3d 10 6 0.88 0.74 R* 2.702702703 491 Zn+2 2 3d 10 8 1.04 0.9 C 2.222222222 492 Zr+4 4 4p 6 4 0.73 0.59 R 6.779661017 493 Zr+4 4 4p 6 5 0.8 0.66 C 6.060606061 494 Zr+4 4 4p 6 6 0.86 0.72 R* 5.555555556 495 Zr+4 4 4p 6 7 0.92 0.78 * 5.128205128 496 Zr+4 4 4p 6 8 0.98 0.84 * 4.761904762 497 Zr+4 4 4p 6 9 1.03 0.89 4.494382022