
Appendix D: Table of Atomic Masses 197
Appendix D
Table of Atomic Masses
In this appendix, atomic mass data is taken from the recent 2003 evaluation by Audi et al.*. The
atomic masses are given for 3177 nuclides (ground states). In addition the table below includes
atomic mass data for 977 excited isomeric states. These have been calculated from the excess mass
data from the Nubase 2003 file**.
Isomers (defined as excited states with half-lives greater than 100 ns) are given in order of increasing
excitation energy and identified by appending ‘m’, ‘n’, ‘p’ or ‘q’ to the nuclide name, e.g.
90
Nb for
the ground state,
90
Nb
m
for the first excited state,
90
Nb
n
for the second excited state etc.
In this evaluation the provisional symbols Ea, Eb, ...Ei are used for elements 110, 111, . . . 118.
Recently, IUPAC has adopted the name Darmstadtium with symbol Ds for element 110, and this is
used in the table below.
* G.Audi, O. Bersillon, J. Blacot, A. H. Wapstra: Nuclear Physics A 729, 337–676 (2003).
** G.Audi, O. Bersillon, J. Blacot, A. H. Wapstra: The NUBASE evaluation of nuclear and decay properties.
Nuclear Physics A 729, 3–128 (2003).
NZ AEl Atomic mass
NZA El Atomic mass NZAEl Atomic mass
(
µu) (µu) (µu)
1 0 1 n 1 008664.9157
4 5 B 9 013328.8 5 9 F 14 035060
0 1 H 1 007825.03207
3 6 C 9 031036.7 11 4 15 Be 15 053460
1 1 2 H 2 014101.7778
8 2 10 He 10 052400 10 5 B 15 031103
2 1 3 H 3 016049.2777
7 3 Li 10 035481 9 6 C 15 010599.3
1 2 He 3 016029.3191
73 Li
m
10 035695 8 7 N 15 000108.8982
0 3 Li 3 030780
73 Li
n
10 035996 7 8 O 15 003065.6
3 1 4 H 4 027810
6 4 Be 10 013533.8 6 9 F 15 018010
2 2 He 4 002603.25415
5 5 B 10 012937.0 12 4 16 Be 16 061920
1 3 Li 4 027190
4 6 C 10 016853.2 11 5 B 16 039810
4 1 5 H 5 035310
3 7 N 10 041650 10 6 C 16 014701
3 2 He 5 012220
8 3 11 Li 11 043798 9 7 N 16 006101.7
2 3 Li 5 012540
7 4 Be 11 021658 8 8 O 15 994914.61956
1 4 Be 5 040790
6 5 B 11 009305.4 7 9 F 16 011466
5 1 6 H 6 044940
5 6 C 11 011433.6 6 10 Ne 16 025761
4 2 He 6 018889.1
4 7 N 11 026090 12 5 17 B 17 046990
3 3 Li 6 015122.795
9 3 12 Li 12 053780 11 6 C 17 022586
2 4 Be 6 019726
8 4 Be 12 026921 10 7 N 17 008450
1 5 B 6 046810
7 5 B 12 014352.1 9 8 O 16 999131.70
6 1 7 H 7 052750
6 6 C 12 000000.0 8 9 F 17 002095.24
5 2 He 7 028021
5 7 N 12 018613.2 7 10 Ne 17 017672
4 3 Li 7 016004.55
4 8 O 12 034405 13 5 18 B 18 056170
3 4 Be 7 016929.83
9 4 13 Be 13 035690 12 6 C 18 026760
2 5 B 7 029920
8 5 B 13 017780.2 11 7 N 18 014079
6 2 8 He 8 033922
7 6 C 13 003354.8378 10 8 O 17 999161.0
5 3 Li 8 022487.36
6 7 N 13 005738.61 9 9 F 18 000938.0
4 4 Be 8 005305.10
5 8 O 13 024812 8 10 Ne 18 005708.2
3 5 B 8 024607.2
10 4 14 Be 14 042890 7 11 Na 18 025970
2 6 C 8 037675
9 5 B 14 025404 14 5 19 B 19 063730
7 2 9 He 9 043950
8 6 C 14 003241.989 13 6 C 19 034810
6 3 Li 9 026789.5
7 7 N 14 003074.0048 12 7 N 19 017029
5 4 Be 9 012182.2
6 8 O 14 008596.25 11 8 O 19 003580