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List Of Used Atomic Masses

The following atomic masses are used in CFOUR by default:

hydrogen1.007825035
helium4.00260324
lithium7.0160030
berylium9.0121822
boron11.0093054
carbon12.0000000
nitrogen14.003074002
oxygen15.99491463
fluorine18.99840322
neon19.9924356
sodium22.9897677
magnesium23.9850423
aluminum26.9815386
silicon27.9769271
phosphorus30.9737620
sulfur31.97207070
chlorine34.968852721
argon39.9623837
potassium38.9637074
calcium39.9625906
scandium44.9559100
titanium47.9479473
vanadium50.9439617
chromium51.9405098
mangane54.9380471
iron55.9349393
cobalt58.9331976
nickel57.9353462
copper62.9295989
zinc63.9291448
gallium68.925580
germanium73.9211774
arsenic74.9215942
selenium79.9165196
bromine78.9183361
krypton83.911507
rubidium84.911794
strontium87.9056188
yttrium88.905849
zirconium89.9047026
niobium92.9063772
molybdenum97.9054073
technetium97.907215
ruthenium101.9043485
rhodium102.905500
palladium105.903478
silver106.905092
cadmium113.903357
indium114.903882
tin119.9021991
antiamony120.9038212
tellurium129.906229
iodine126.904473
xenon131.904144
cesium132.905429
barium137.905232
lanthanum138.906347
cerium139.905433
praseodymium140.907647
neodymium141.907719
promethium144.912743
samarium151.919728
europium152.921225
gadolinium157.924019
terbium158.925342
dysprosium163.929171
holmium164.930319
erbium165.930290
thulium168.93421
ytterbium173.938859
lutetium174.940770
hafnium179.9465457
tantalum180.947462
tungsten183.950928
rhenium186.955744
osmium191.961467
iridium192.962917
platinum194.964766
gold196.966543
mercury201.970617
thallium204.974401
lead207.976627
bismuth208.980374
polonium208.982404
astatine209.987126
xenon222.017571

For the most important other isotopes, the following values are provided:

hydrogen (2H or D)2.014101779
hydrogen (3H or T)3.01604927
helium (3He)3.01602931
lithium (6Li)6.0151214
boron (10 B)10.0129369
carbon (13C)13.003354826
carbon (14C)14.003241982
nitrogen (15N)15.00010897
oxygen (18O)17.9991603
oxygen (17O)16.9991312
neon (22Ne)21.9913831
neon (21Ne)20.9938428
magnesium (26Mg)25.9825937
magnesium (25Mg)24.9858374
silicon (29Si)28.9764949
silicon (30Si)29.9737707
sulfur (34S)33.96786665
sulfur (33S)32.97145843
sulfur (36S)35.96708062
chlorine (37Cl)36.96590262
argon (36Ar}35.96754552
argon (38Ar)37.9627325

All values are taken from

QUANTITIES, UNITS, AND SYMBOLS IN PHYSICAL CHEMISTRY, I. Mills et al. Blackwell Science, Oxford, 1993, 2nd Ed.

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Page last modified on January 15, 2009, at 08:32 PM
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CFOUR is partially supported by the U.S. National Science Foundation.