Table of covalent radii (in ) used in USPEX (for hardness calculations, etc.):
Z |
Element |
radius |
Z |
Element |
radius |
Z |
Element |
radius |
1 |
H |
0.31 |
30 |
Zn |
1.22 |
63 |
Eu |
1.98 |
2 |
He |
0.28 |
31 |
Ga |
1.22 |
64 |
Gd |
1.96 |
3 |
Li |
1.28 |
32 |
Ge |
1.20 |
65 |
Tb |
1.94 |
4 |
Be |
0.96 |
33 |
As |
1.19 |
66 |
Dy |
1.92 |
5 |
B |
0.84 |
34 |
Se |
1.20 |
67 |
Ho |
1.92 |
6 |
Csp |
0.76 |
35 |
Br |
1.20 |
68 |
Er |
1.89 |
Csp |
0.73 |
36 |
Kr |
1.16 |
69 |
Tm |
1.90 |
|
Csp |
0.69 |
37 |
Rb |
2.20 |
70 |
Yb |
1.87 |
|
7 |
N |
0.71 |
38 |
Sr |
1.95 |
71 |
Lu |
1.87 |
8 |
O |
0.66 |
39 |
Y |
1.90 |
72 |
Hf |
1.75 |
9 |
F |
0.57 |
40 |
Zr |
1.75 |
73 |
Ta |
1.70 |
10 |
Ne |
0.58 |
41 |
Nb |
1.64 |
74 |
W |
1.62 |
11 |
Na |
1.66 |
42 |
Mo |
1.54 |
75 |
Re |
1.51 |
12 |
Mg |
1.41 |
43 |
Tc |
1.47 |
76 |
Os |
1.44 |
13 |
Al |
1.21 |
44 |
Ru |
1.46 |
77 |
Ir |
1.41 |
14 |
Si |
1.11 |
45 |
Rh |
1.42 |
78 |
Pt |
1.36 |
15 |
P |
1.07 |
46 |
Pd |
1.39 |
79 |
Au |
1.36 |
16 |
S |
1.05 |
47 |
Ag |
1.45 |
80 |
Hg |
1.32 |
17 |
Cl |
1.02 |
48 |
Cd |
1.44 |
81 |
Tl |
1.45 |
18 |
Ar |
1.06 |
49 |
In |
1.42 |
82 |
Pb |
1.46 |
19 |
K |
2.03 |
50 |
Sn |
1.39 |
83 |
Bi |
1.48 |
20 |
Ca |
1.76 |
51 |
Sb |
1.39 |
84 |
Po |
1.40 |
21 |
Sc |
1.70 |
52 |
Te |
1.38 |
85 |
At |
1.50 |
22 |
Ti |
1.60 |
53 |
I |
1.39 |
86 |
Rn |
1.50 |
23 |
V |
1.53 |
54 |
Xe |
1.40 |
87 |
Fr |
2.60 |
24 |
Cr |
1.39 |
55 |
Cs |
2.44 |
88 |
Ra |
2.21 |
25 |
Mn l.s. |
1.39 |
56 |
Ba |
2.15 |
89 |
Ac |
2.15 |
h.s |
1.61 |
57 |
La |
2.07 |
90 |
Th |
2.06 |
|
26 |
Fe l.s |
1.32 |
58 |
Ce |
2.04 |
91 |
Pa |
2.00 |
h.s. |
1.52 |
59 |
Pr |
2.03 |
92 |
U |
1.96 |
|
27 |
Co l.s. |
1.26 |
60 |
Nd |
2.01 |
93 |
Np |
1.90 |
h.s. |
1.50 |
61 |
Pm |
1.99 |
94 |
Pu |
1.87 |
|
28 |
Ni |
1.24 |
62 |
Sm |
1.98 |
95 |
Am |
1.80 |
29 |
Cu |
1.32 |
96 |
Cm |
1.69 |
Source: Cordero et al., Dalton Trans. 2832-2838, 2008 37.