August 2022
Intermediate to advanced
1024 pages
26h 27m
English
Table B.1 Relative Atomic Weights, 1965 (Based on the Atomic Mass of 12C = 12) The values for atomic weights given in the table apply to elements as they exist in nature, without artificial alteration of their isotopic composition, and, further, to natural mixtures that do not include isotopes of radiogenic origin.
Name |
Symbol |
Atomic Number |
Atomic Weight |
|---|---|---|---|
Actinium |
Ac |
89 |
— |
Aluminum |
Al |
13 |
26.9815 |
Americium |
Am |
95 |
— |
Antimony |
Sb |
51 |
121.75 |
Argon |
Ar |
18 |
39.948 |
Arsenic |
As |
33 |
74.9216 |
Astatine |
At |
85 |
— |
Barium |
Ba |
56 |
137.34 |
Berkelium |
Bk |
97 |
— |
Beryllium |
Be |
4 |
9.0122 |
Bismuth |
Bi |
83 |
208.980 |
Boron |
B |
5 |
10.811 |
Bromine |
Br |
35 |
79.904 |
Cadmium |
Cd |
48 |
112.40 |
Cesium |
Cs |
55 |
132.905 |
Calcium |
Ca |
20 |
40.08 ... |
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