SAD--Anders and Grevesse (1989)
Standard Abundance Distribution on Astronomical Scale
| Element |
Symbol |
Atomic No. |
Atomic Wt. |
Abund. |
Log(Ab) |
| |
| Hydrogen |
H |
1 |
1.0079 |
9.99E+11 |
12.00 |
| Helium |
He |
2 |
4.0026 |
9.74E+10 |
10.99 |
| Lithium |
Li |
3 |
6.9400 |
2.05E+03 |
3.31 |
| Beryllium |
Be |
4 |
9.0100 |
2.61E+01 |
1.42 |
| Boron |
B |
5 |
10.8100 |
7.59E+02 |
2.88 |
| Carbon |
C |
6 |
12.0100 |
3.62E+08 |
8.56 |
| Nitrogen |
N |
7 |
14.0100 |
1.12E+08 |
8.05 |
| Oxygen |
O |
8 |
16.0000 |
8.52E+08 |
8.93 |
| Fluorine |
F |
9 |
19.0000 |
3.02E+04 |
4.48 |
| Neon |
Ne |
10 |
20.1800 |
1.23E+08 |
8.09 |
| Sodium |
Na |
11 |
22.9900 |
2.06E+06 |
6.31 |
| Magnesium |
Mg |
12 |
24.3000 |
3.85E+07 |
7.59 |
| Aluminium |
Al |
13 |
26.9800 |
3.04E+06 |
6.48 |
| Silicon |
Si |
14 |
28.0900 |
3.58E+07 |
7.55 |
| Phosphorus |
P |
15 |
30.9700 |
3.72E+05 |
5.57 |
| Sulfur |
S |
16 |
32.0700 |
1.84E+07 |
7.27 |
| Chlorine |
Cl |
17 |
35.4500 |
1.88E+05 |
5.27 |
| Argon |
Ar |
18 |
39.9500 |
3.62E+06 |
6.56 |
| Potassium |
K |
19 |
39.1000 |
1.35E+05 |
5.13 |
| Calcium |
Ca |
20 |
40.0800 |
2.19E+06 |
6.34 |
| Scandium |
Sc |
21 |
44.9600 |
1.23E+03 |
3.09 |
| Titanium |
Ti |
22 |
47.8800 |
8.59E+04 |
4.93 |
| Vanadium |
V |
23 |
50.9400 |
1.05E+04 |
4.02 |
| Chromium |
Cr |
24 |
52.0000 |
4.83E+05 |
5.68 |
| Manganese |
Mn |
25 |
54.9400 |
3.42E+05 |
5.53 |
| Iron |
Fe |
26 |
55.8500 |
3.22E+07 |
7.51 |
| Cobalt |
Co |
27 |
58.9300 |
8.06E+04 |
4.91 |
| Nickel |
Ni |
28 |
58.6900 |
1.77E+06 |
6.25 |
| Copper |
Cu |
29 |
63.5500 |
1.87E+04 |
4.27 |
| Zinc |
Zn |
30 |
65.3900 |
4.51E+04 |
4.65 |
| Gallium |
Ga |
31 |
69.7200 |
1.35E+03 |
3.13 |
| Germanium |
Ge |
32 |
72.6100 |
4.26E+03 |
3.63 |
| Arsenic |
As |
33 |
74.9200 |
2.35E+02 |
2.37 |
| Selenium |
Se |
34 |
78.9600 |
2.22E+03 |
3.35 |
| Bromine |
Br |
35 |
79.9000 |
4.23E+02 |
2.63 |
| Krypton |
Kr |
36 |
83.8000 |
1.61E+03 |
3.21 |
| Rubidium |
Rb |
37 |
85.4700 |
2.54E+02 |
2.40 |
| Strontium |
Sr |
38 |
87.6200 |
8.42E+02 |
2.93 |
| Yttrium |
Y |
39 |
88.9100 |
1.66E+02 |
2.22 |
| Zirconium |
Zr |
40 |
91.2200 |
4.08E+02 |
2.61 |
| Neobium |
Nb |
41 |
92.9100 |
2.50E+01 |
1.40 |
| Molybdenum |
Mo |
42 |
95.9400 |
9.13E+01 |
1.96 |
| Technetium |
Tc |
43 |
-98.0000 |
|
|
| Ruthenium |
Ru |
44 |
101.0700 |
6.66E+01 |
1.82 |
| Rhodium |
Rh |
45 |
102.9100 |
1.23E+01 |
1.09 |
| Palladium |
Pd |
46 |
106.4200 |
4.98E+01 |
1.70 |
| Silver |
Ag |
47 |
107.8700 |
1.74E+01 |
1.24 |
| Cadmium |
Cd |
48 |
112.4100 |
5.77E+01 |
1.76 |
| Indium |
In |
49 |
114.8200 |
6.59E+00 |
0.82 |
| Tin |
Sn |
50 |
118.7100 |
1.37E+02 |
2.14 |
| Antimony |
Sb |
51 |
121.7600 |
1.11E+01 |
1.04 |
| Tellurium |
Te |
52 |
127.6000 |
1.72E+02 |
2.24 |
| Iodine |
I |
53 |
126.9045 |
1.51E+02 |
2.18 |
| Xenon |
Xe |
54 |
131.2900 |
1.68E+02 |
2.23 |
| Cesium |
Cs |
55 |
132.9100 |
1.33E+01 |
1.12 |
| Barium |
Ba |
56 |
137.3300 |
1.61E+02 |
2.21 |
| Lanthanum |
La |
57 |
138.9100 |
1.60E+01 |
1.20 |
| Cerium |
Ce |
58 |
140.1200 |
4.07E+01 |
1.61 |
| Prasodymiu |
|P |
59 |
140.9100 |
5.98E+00 |
0.78 |
| Neodymium |
Nd |
60 |
144.2400 |
2.97E+01 |
1.47 |
| Promethium |
Pm |
61 |
-145.0000 |
|
|
| Samarium |
Sm |
62 |
150.3600 |
9.25E+00 |
0.97 |
| Europium |
Eu |
63 |
151.9600 |
3.48E+00 |
0.54 |
| Gadolinium |
Gd |
64 |
157.2500 |
1.18E+01 |
1.07 |
| Terbium |
Tb |
65 |
158.9300 |
2.16E+00 |
0.33 |
| Dysprosium |
Dy |
66 |
162.5000 |
1.41E+01 |
1.15 |
| Holmium |
Ho |
67 |
164.9300 |
3.18E+00 |
0.50 |
| Erbium |
Er |
68 |
167.2600 |
8.98E+00 |
0.95 |
| Thulium |
Tm |
69 |
168.9300 |
1.35E+00 |
0.13 |
| Ytterbium |
Yb |
70 |
173.0400 |
8.88E+00 |
0.95 |
| Lutetium |
Lu |
71 |
174.9700 |
1.31E+00 |
0.12 |
| Hafnium |
Hf |
72 |
178.4900 |
5.52E+00 |
0.74 |
| Tantalum |
Ta |
73 |
180.9500 |
7.41E-01 |
-0.13 |
| Tungsten |
W |
74 |
183.8400 |
4.76E+00 |
0.68 |
| Rhenium |
Re |
75 |
186.2100 |
1.85E+00 |
0.27 |
| Osmium |
Os |
76 |
190.2300 |
2.42E+01 |
1.38 |
| Iridium |
Ir |
77 |
192.2200 |
2.37E+01 |
1.37 |
| Platinum |
Pt |
78 |
195.0800 |
4.80E+01 |
1.68 |
| Gold |
Au |
79 |
196.9700 |
6.70E+00 |
0.83 |
| Mercury |
Hg |
80 |
200.5900 |
1.22E+01 |
1.09 |
| Thallium |
Tl |
81 |
204.3800 |
6.59E+00 |
0.82 |
| Lead |
Pb |
82 |
207.2000 |
1.13E+02 |
2.05 |
| Bismuth |
Bi |
83 |
208.9800 |
5.16E+00 |
0.71 |
| Polonium |
Po |
84 |
-209.0000 |
|
|
| Astatine |
At |
85 |
-210.0000 |
|
|
| Radon |
Rn |
86 |
-222.0000 |
|
|
| Francium |
Fr |
87 |
-223.0000 |
|
|
| Radium |
Ra |
88 |
226.0200 |
|
|
| Actinium |
Ac |
89 |
227.0300 |
|
|
| Thorium |
Th |
90 |
232.0400 |
1.20E+00 |
0.08 |
| Protactinium |
Pa |
91 |
231.0400 |
|
|
| Uranium |
U |
92 |
238.0300 |
3.22E-01 |
-0.49 |
The total number of atoms in the SAD is 1.098 x 1012
The mean molecular weight is 1.298 gm/mole