Ionic Radii
|
Ion |
Coord No |
Radius |
Ion |
Coord No |
Radius |
|
Ag+ |
4 |
114 |
C4+ |
3 |
6 |
| 6 |
129 | |
4 |
29 |
| Ag2+ |
4 |
93 | |
6 |
30 |
| 6 |
108 |
Ca2+ |
6 |
114 |
| Ag3+ |
4 |
81 | |
8 |
126 |
|
6 |
89 |
Cd2+ |
4 |
92 |
| Al3+ |
4 |
53 | |
6 |
109 |
|
6 |
67.5 |
Cl- |
6 |
167 |
| As3+ |
6 |
72 |
Cl5+ |
3 |
26 |
| As5+ |
4 |
47.5 |
Cl7+ |
4 |
22 |
|
6 |
60 | |
6 |
41 |
| Au+ |
6 |
151 |
Co2+ |
4(HS) |
72 |
| Au3+ |
4 |
82 | |
6(LS) |
79 |
| 6 |
99 | |
6(HS) |
88.5 |
| B3+ |
3 |
15 |
Co3+ |
6(LS) |
68.5 |
|
4 |
25 | |
6(HS) |
75 |
|
6 |
41 |
Cr2+ |
6(LS) |
87 |
| Ba2+ |
6 |
149 | |
6(HS) |
94 |
| Be2+ |
4 |
41 |
Cr3+ |
6 |
75.5 |
|
6 |
59 |
Cr6+ |
4 |
40 |
| Bi3+ |
6 |
117 | |
6 |
58 |
| Bi5+ |
6 |
90 |
Cs+ |
6 |
181 |
| Br- |
6 |
182 | |
8 |
188 |
| Br3+ |
4 |
73 |
Cu+ |
2 |
60 |
| Br7+ |
4 |
39 | |
4 |
74 |
|
6 |
53 | |
6 |
91 |
|
Ion |
Coord No |
Radius |
Ion |
Coord No |
Radius |
| Cu2+ |
4 |
71 |
In3+ |
4 |
76 |
|
6 |
87 | |
6 |
94 |
| Cu3+ |
6 |
68 |
Ir3+ |
6 |
82 |
| F- |
2 |
114.5 |
K+ |
4 |
151 |
|
4 |
117 | |
6 |
152 |
|
6 |
119 |
Li+ |
4 |
73 |
| F7+ |
6 |
22 | |
6 |
90 |
| Fe2+ |
4(HS) |
77 |
Mg2+ |
4 |
71 |
|
6(LS) |
75 | |
6 |
86 |
|
6(HS) |
92 |
Mn2+ |
4(HS) |
80 |
| Fe3+ |
4(HS) |
63 | |
6(LS) |
81 |
|
6(LS) |
69 | |
6(HS) |
97 |
|
6(HS) |
78.5 |
Mn7+ |
4 |
39 |
| Fe6+ |
4 |
39 | |
6 |
60 |
| Fr+ |
6 |
194 |
Mo6+ |
4 |
55 |
| Ga3+ |
4 |
61 | |
6 |
73 |
|
6 |
76 |
N3- |
4 |
132 |
| Ge4+ |
4 |
53 |
N3+ |
6 |
30 |
|
6 |
67 |
N5+ |
3 |
4.4 |
| H+ |
1 |
24 | |
6 |
27 |
|
2 |
4 |
Na+ |
4 |
113 |
| Hg2+ |
2 |
83 | |
6 |
116 |
|
4 |
110 |
Nb5+ |
4 |
62 |
|
6 |
116 | |
6 |
78 |
| I- |
6 |
206 |
Ni2+ |
4 |
69 |
| I5+ |
6 |
109 | |
4(SQ) |
63 |
| I7+ |
4 |
56 | |
6 |
83 |
|
6 |
67 |
O2- |
2 |
121 |
|
Ion |
Coord No |
Radius |
Ion |
Coord No |
Radius |
|
3 |
122 |
S4+ |
6 |
51 |
|
4 |
124 |
S6+ |
4 |
26 |
|
6 |
126 | |
6 |
43 |
|
| OH- |
2 |
118 |
Sb3+ |
4 |
90 |
|
4 |
121 |
|
6 |
90 |
|
6 |
123 |
Sb5+ |
6 |
74 |
| Os8+ |
4 |
53 |
Sc3+ |
6 |
88.5 |
| P3+ |
6 |
58 |
Se2- |
6 |
184 |
| P5+ |
4 |
31 |
Se4+ |
6 |
64 |
|
6 |
52 |
Se6+ |
4 |
42 |
| Pb2+ |
4 |
112 |
|
6 |
56 |
|
6 |
133 |
Si4+ |
4 |
40 |
| Pd2+ |
4(SQ) |
78 |
|
6 |
54 |
|
6 |
100 |
Sn4+ |
4 |
69 |
| Pd4+ |
6 |
75.5 |
|
6 |
83 |
| Pt2+ |
4(SQ) |
74 |
Sr2+ |
6 |
132 |
|
6 |
94 |
Te2- |
6 |
207 |
| Pt4+ |
6 |
76.5 |
Ti4+ |
4 |
56 |
| Ra2+ |
8 |
162 |
|
6 |
74.5 |
| Rb+ |
6 |
166 |
Tl+ |
6 |
164 |
|
8 |
175 |
Tl3+ |
4 |
89 |
| Re7+ |
4 |
52 |
|
6 |
102.5 |
|
6 |
67 |
U6+ |
4 |
66 |
| Rh3+ |
6 |
80.5 |
|
6 |
87 |
| Ru3+ |
6 |
82 |
V5+ |
4 |
49.5 |
| S2- |
6 |
170 |
|
6 |
68 |
|
Ion |
Coord No |
Radius |
Ion |
Coord No |
Radius |
| W6+ |
4 |
56 |
| Zn2+ |
4 |
74 |
|
6 |
88 |
| Zr4+ |
4 |
73 |
|
6 |
86 |