# Atomic weights and isotope abundances were retrieved from the following report.
#  De Laeter JR, Bohlke JK, De Bievre P, Hidaka H, Peiser HS, Rosman KJR and
#  Taylor PDP (2003) Atomic weights of the elements: Review 2000 (IUPAC technical
#  report). Pure Appl Chem 75: 683-800
# The mass of the most abundant isotope was used for the formula mass calculation 
# in the MFSearcher.
#atom	atomic weight	isotope abundance
H	1.0078250319	0.99985
H	2.0141021	0.00015
He	3.01603	0.00000138
He	4.00260	0.99999862
Li	6.015121	0.075
Li	7.016003	0.925
Be	9.012182	1.0
B	10.012937	0.199
B	11.009305	0.801
C	12.0000000	0.988930
C	13.0033554	0.011070
N	14.0030740074	0.996337
N	15.0001088	0.003663
O	15.9949146223	0.997590
O	16.9991322	0.000374
O	17.9991616	0.002036
F	18.9984032	1.0
Ne	19.992435	0.9048
Ne	20.993843	0.0027
Ne	21.991383	0.0925
Na	22.98976966	1.0
Mg	23.985042	0.7899
Mg	24.985837	0.1000
Mg	25.982593	0.1101
Al	26.981539	1.0
Si	27.976927	0.9223
Si	28.976495	0.0467
Si	29.973770	0.0310
P	30.973763	1.0
S	31.972071	0.9502
S	32.971456	0.0075
S	33.967866	0.0421
S	35.967080	0.0002
Cl	34.9688531	0.755290
Cl	36.9659034	0.244710
Ar	35.967545	0.00337
Ar	37.962732	0.00063
Ar	39.962384	0.99600
K	38.9637069	0.932581
K	39.963999	0.000117
K	40.961825	0.067302
Ca	39.962591	0.96941
Ca	41.958618	0.00647
Ca	42.958766	0.00135
Ca	43.955480	0.02086
Ca	45.953689	0.00004
Ca	47.952533	0.00187
Sc	44.955910	1.0
Ti	45.952629	0.080
Ti	46.951764	0.073
Ti	47.947947	0.738
Ti	48.947871	0.055
Ti	49.944792	0.054
V	49.947161	0.00250
V	50.943962	0.99750
Cr	49.946046	0.04345
Cr	51.940509	0.83790
Cr	52.940651	0.09500
Cr	53.938882	0.02365
Mn	54.938047	1.0
Fe	53.939612	0.0590
Fe	55.934939	0.9172
Fe	56.935396	0.0210
Fe	57.933277	0.0028
Co	58.933198	1.0
Ni	57.935346	0.6827
Ni	59.930788	0.2610
Ni	60.931058	0.0113
Ni	61.928346	0.0359
Ni	63.927968	0.0091
Cu	62.939598	0.6917
Cu	64.927793	0.3083
Zn	63.929145	0.486
Zn	65.926034	0.279
Zn	66.927129	0.041
Zn	67.924846	0.188
Zn	69.925325	0.006
Ga	68.925580	0.60108
Ga	70.924700	0.39892
Ge	69.924250	0.205
Ge	71.922079	0.274
Ge	72.923463	0.078
Ge	73.921177	0.365
Ge	75.921401	0.078
As	74.921594	1.0
Se	73.922475	0.009
Se	75.919212	0.091
Se	76.919912	0.076
Se	77.9190	0.236
Se	79.916520	0.499
Se	81.916698	0.089
Br	78.918336	0.5069
Br	80.916289	0.4931
Kr	77.914	0.0035
Kr	79.916380	0.0225
Kr	81.913482	0.116
Kr	82.914135	0.115
Kr	83.911507	0.570
Kr	85.910616	0.173
Rb	84.911794	0.7217
Rb	86.909187	0.2783
Sr	83.913430	0.0056
Sr	85.909267	0.0986
Sr	86.908884	0.0700
Sr	87.905619	0.8258
Y	88.905849	1.0
Zr	89.904703	0.5145
Zr	90.905644	0.1122
Zr	91.905039	0.1715
Zr	93.906314	0.1738
Zr	95.908275	0.0280
Nb	92.906377	1.0
Mo	91.906808	0.1484
Mo	93.905085	0.0925
Mo	94.905840	0.1592
Mo	95.904678	0.1668
Mo	96.906020	0.0955
Mo	97.905406	0.2413
Mo	99.907477	0.0963
Tc	98.0	1.0
Ru	95.907599	0.0554
Ru	97.905287	0.0186
Ru	98.905939	0.127
Ru	99.904219	0.126
Ru	100.905582	0.171
Ru	101.904348	0.316
Ru	103.905424	0.186
Rh	102.905500	1.0
Pd	101.905634	0.0102
Pd	103.904029	0.1114
Pd	104.905079	0.2233
Pd	105.903478	0.2733
Pd	107.903895	0.2646
Pd	109.905167	0.1172
Ag	106.905092	0.51839
Ag	108.904757	0.48161
Cd	105.906461	0.0125
Cd	107.904176	0.0089
Cd	109.903005	0.1249
Cd	110.904182	0.1280
Cd	111.902758	0.2413
Cd	112.904400	0.1222
Cd	113.903357	0.2873
Cd	115.904754	0.0749
In	112.904061	0.043
In	114.903880	0.957
Sn	111.904826	0.0097
Sn	113.902784	0.0065
Sn	114.903348	0.0036
Sn	115.901747	0.1453
Sn	116.902956	0.0768
Sn	117.901609	0.2422
Sn	118.903310	0.0858
Sn	119.902200	0.3259
Sn	121.903440	0.0463
Sn	123.905274	0.0579
Sb	120.903821	0.574
Sb	122.904216	0.426
Te	119.904048	0.00095
Te	121.903054	0.0259
Te	122.904271	0.00905
Te	123.902823	0.0479
Te	124.904433	0.0712
Te	125.903314	0.1893
Te	127.904463	0.3170
Te	129.906229	0.3387
I	126.904473	1.0
Xe	123.905894	0.0010
Xe	125.904281	0.0009
Xe	127.903531	0.0191
Xe	128.904780	0.264
Xe	129.903509	0.041
Xe	130.905072	0.212
Xe	131.904144	0.269
Xe	133.905395	0.104
Xe	135.907214	0.089
Cs	132.905429	1.0
Ba	129.906282	0.00106
Ba	131.905042	0.00101
Ba	133.904486	0.0242
Ba	134.905665	0.06593
Ba	135.904553	0.0785
Ba	136.905812	0.1123
Ba	137.905232	0.7170
La	137.90711	0.00090
La	138.906347	0.99910
Ce	135.907140	0.0019
Ce	137.905985	0.0025
Ce	139.905433	0.8843
Ce	141.909241	0.1113
Pr	140.907647	1.0
Nd	141.907719	0.2713
Nd	142.909810	0.1218
Nd	143.910083	0.2380
Nd	144.912570	0.0830
Nd	145.913113	0.1719
Nd	147.916889	0.0576
Nd	149.920887	0.0564
Pm	145.0	1.0
Sm	143.911998	0.031
Sm	146.914895	0.150
Sm	147.914820	0.113
Sm	148.917181	0.138
Sm	149.917273	0.074
Sm	151.919729	0.267
Sm	153.922206	0.227
Eu	150.919847	0.478
Eu	152.921225	0.522
Gd	151.919786	0.0020
Gd	153.920861	0.0218
Gd	154.922618	0.1480
Gd	155.922118	0.2047
Gd	156.923956	0.1565
Gd	157.924099	0.2484
Gd	159.927049	0.2186
Tb	158.925342	1.0
Dy	155.925277	0.0006
Dy	157.924403	0.0010
Dy	159.925193	0.0234
Dy	160.926930	0.189
Dy	161.926795	0.255
Dy	162.928728	0.249
Dy	163.929171	0.282
Ho	164.930319	1.0
Er	161.928775	0.0014
Er	163.929198	0.0161
Er	165.930290	0.336
Er	166.932046	0.2295
Er	167.932368	0.268
Er	169.935461	0.149
Tm	168.934212	1.0
Yb	167.933894	0.0013
Yb	169.934759	0.0305
Yb	170.936323	0.143
Yb	171.936378	0.219
Yb	172.938208	0.1612
Yb	173.938859	0.318
Yb	175.942564	0.127
Lu	174.940770	0.9741
Lu	175.942679	0.0259
Hf	173.940044	0.00162
Hf	175.941406	0.05206
Hf	176.943217	0.18606
Hf	177.943696	0.27297
Hf	178.945812	0.13629
Hf	179.946545	0.35100
Ta	179.947462	0.00012
Ta	180.947992	0.99988
W	179.946701	0.0012
W	181.948202	0.263
W	182.950220	0.1428
W	183.950928	0.307
W	185.954357	0.286
Re	184.952951	0.3740
Re	186.955744	0.6260
Os	183.952488	0.0002
Os	185.953830	0.0158
Os	186.955741	0.016
Os	187.955860	0.133
Os	188.958137	0.161
Os	189.958436	0.264
Os	191.961467	0.410
Ir	190.960584	0.373
Ir	192.962917	0.627
Pt	189.959917	0.0001
Pt	191.961019	0.0079
Pt	193.962655	0.329
Pt	194.964766	0.338
Pt	195.964926	0.253
Pt	197.967869	0.072
Au	196.966543	1.0
Hg	195.965807	0.0015
Hg	197.966743	0.100
Hg	198.968254	0.169
Hg	199.968300	0.231
Hg	200.970277	0.132
Hg	201.970617	0.298
Hg	203.973467	0.0685
Tl	202.972320	0.29524
Tl	204.974401	0.70476
Pb	203.973020	0.014
Pb	205.974440	0.241
Pb	206.975872	0.221
Pb	207.976627	0.524
Bi	208.980374	1.0
Po	209.0	1.0
At	210.0	1.0
Rn	222.0	1.0
Fr	223.0	1.0
Ra	226.025	1.0
Ac	227.028	1.0
Th	232.038054	1.0
Pa	231.0359	1.0
U	234.040946	0.000055
U	235.043924	0.00720
U	238.050784	0.992745
Np	237.048	1.0
Pu	244.0	1.0
Am	243.0	1.0
Cm	247.0	1.0
Bk	247.0	1.0
Cf	251.0	1.0
Es	252.0	1.0
Fm	257.0	1.0
Md	258.0	1.0
No	259.0	1.0
Lr	260.0	1.0
# EOF