03.00
2013-30-31
0
electron
e
-0.00054857990943(23)
1
hydrogen
H
1.008
[1.00784; 1.00811]
1
protium
(1)H
1.00782503207(10)
0.999885
2
deuterium
(2)H
2.01410177785(36)
0.000115
3
tritium
(3)H
3.01604927767(247)
0.000000
2
helium
He
4.002602(2)
3
(3)He
3.01602931914(260)
0.000001
4
(4)He
4.00260325415(6)
0.999999
3
lithium
Li
6.94
[6.938; 6.997]
6
(6)Li
6.015122794(16)
0.0759
7
(7)Li
7.016004548(84)
0.9241
4
berylium
Be
9.012182(3)
7
(7)Be
7.016929828(113)
0.0000
8
(8)Be
8.005305103(37)
0.0000
9
(9)Be
9.012182201(426)
1.0000
5
boron
B
10.81
[10.806; 10.821]
8
(8)B
8.024607233(1073)
0.000
10
(10)B
10.012936992(413)
0.199
11
(11)B
11.009305406(448)
0.801
6
carbon
C
12.011
[12.0096; 12.0116]
11
(11)C
11.011433613(1020)
0.0000
12
(12)C
12.
0.9893
13
(13)C
13.00335483778(98)
0.0107
14
(14)C
14.00324198870(408)
0.0000
7
nitrogen
N
14.007
[14.00643; 14.00728]
12
(12)N
12.018613197(1073)
0.00000
13
(13)N
13.005738609(289)
0.00000
14
(14)N
14.00307400478(62)
0.99636
15
(15)N
15.00010889823(75)
0.00364
8
oxygen
O
15.999
[15.99903; 15.99977]
14
(14)O
14.008596250(116)
0.00000
15
(15)O
15.003065617(526)
0.00000
16
(16)O
15.99491461956(16)
0.99757
17
(17)O
16.999131703(118)
0.00038
18
(18)O
17.999161001(666)
0.00205
9
fluorine
F
18.9984032(5)
17
(17)F
17.002095237(266)
0.0000
18
(18)F
18.000937956(573)
0.0000
19
(19)F
18.998403224(74)
1.0000
10
neon
Ne
20.1797(6)
19
(19)Ne
19.001880248(307)
0.0000
20
(20)Ne
19.99244017542(192)
0.9048
21
(21)Ne
20.99384668(4)
0.0027
22
(22)Ne
21.991385113(18)
0.0925
11
sodium
Na
22.98976928(2)
23
(23)Na
22.98976928087(293)
1.0000
12
magnesium
Mg
24.305
[24.304; 24.307]
24
(24)Mg
23.985041699(13)
0.7899
25
(25)Mg
24.985836917(34)
0.1000
26
(26)Mg
25.982592929(29)
0.1101
13
aluminium
Al
26.9815386(8)
27
(27)Al
26.981538627(124)
1.0000
14
silicon
Si
28.085
[28.084; 28.086]
28
(28)Si
27.97692653246(194)
0.92223
29
(29)Si
28.976494700(22)
0.04685
30
(30)Si
29.973770171(32)
0.03092
15
phosphorus
P
30.973762(2)
31
(31)P
30.973761629(196)
1.0000
16
sulfur
S
32.06
[32.059; 32.076]
32
(32)S
31.972070999(148)
0.9499
33
(33)S
32.971458759(146)
0.0075
34
(34)S
33.967866902(115)
0.0425
36
(36)S
35.967080760(202)
0.0001
17
chlorine
Cl
35.45
[35.446; 35.457]
35
(35)Cl
34.968852682(40)
0.7576
37
(37)Cl
36.965902591(50)
0.2424
18
argon
Ar
39.948(1)
36
(36)Ar
35.967545105(28)
0.003365
38
(38)Ar
37.962732394(362)
0.000632
40
(40)Ar
39.96238312251(286)
0.996003
19
potassium
K
39.0983(1)
39
(39)K
38.963706679(204)
0.932581
40
(40)K
39.963998475(206)
0.000117
41
(41)K
40.961825762(208)
0.067302
20
calcium
Ca
40.078(4)
40
(40)Ca
39.962590983(224)
0.96941
42
(42)Ca
41.958618014(267)
0.00647
43
(43)Ca
42.958766628(323)
0.00135
44
(44)Ca
43.955481754(403)
0.02086
46
(46)Ca
45.953692587(2443)
0.00004
48
(48)Ca
47.952534177(4382)
0.00187
21
scandium
Sc
44.955912(6)
45
(45)Sc
44.955911909(898)
1.0000
22
titanium
Ti
47.867(1)
46
(46)Ti
45.952631555(894)
0.0825
47
(47)Ti
46.951763088(882)
0.0744
48
(48)Ti
47.947946281(882)
0.7372
49
(49)Ti
48.947869982(882)
0.0541
50
(50)Ti
49.944791194(883)
0.0518
23
vanadium
V
50.9415(1)
50
(50)V
49.947158485(1078)
0.00250
51
(51)V
50.943959507(1075)
0.99750
24
chromium
Cr
51.9961(6)
50
(50)Cr
49.946044205(1074)
0.04345
52
(52)Cr
51.940507472(835)
0.83789
53
(53)Cr
52.940649386(828)
0.09501
54
(54)Cr
53.938880395(821)
0.02365
25
manganese
Mn
54.938045(5)
55
(55)Mn
54.938045141(729)
1.0000
26
iron
Fe
55.845(2)
54
(54)Fe
53.939610501(740)
0.05845
56
(56)Fe
55.934937475(735)
0.91754
57
(57)Fe
56.935393969(736)
0.02119
58
(58)Fe
57.933275558(755)
0.00282
27
cobalt
Co
58.933195(5)
59
(59)Co
58.933195048(669)
1.0000
28
nickel
Ni
58.6934(4)
58
(58)Ni
57.935342907(653)
0.680769
60
(60)Ni
59.930786372(651)
0.262231
61
(61)Ni
60.931056033(651)
0.011399
62
(62)Ni
61.928345115(641)
0.036345
64
(64)Ni
63.927965959(654)
0.009256
29
copper
Cu
63.546(3)
63
(63)Cu
62.929597474(641)
0.6915
65
(65)Cu
64.927789485(728)
0.3085
30
zinc
Zn
65.38(2)
64
(64)Zn
63.929142222(733)
0.48268
66
(66)Zn
65.926033419(987)
0.27975
67
(67)Zn
66.927127345(1005)
0.04102
68
(68)Zn
67.924844154(1025)
0.19024
70
(70)Zn
69.925319274(2095)
0.00631
31
gallium
Ga
69.723(1)
69
(69)Ga
68.925573587(1292)
0.60108
71
(71)Ga
70.924701349(1092)
0.39892
32
germanium
Ge
72.630(8)
70
(70)Ge
69.924247381(1102)
0.2038
72
(72)Ge
71.922075815(1755)
0.2731
73
(73)Ge
72.923458945(1755)
0.0776
74
(74)Ge
73.921177767(1754)
0.3672
76
(76)Ge
75.921402557(1772)
0.0783
33
arsenic
As
74.92160(2)
75
(75)As
74.921596478(1951)
1.0000
34
selenium
Se
78.96(3)
74
(74)Se
73.922476436(1798)
0.0089
76
(76)Se
75.919213597(1772)
0.0937
77
(77)Se
76.919914038(1773)
0.0763
78
(78)Se
77.917309090(1776)
0.2377
80
(80)Se
79.916521271(2135)
0.4961
82
(82)Se
81.916699401(2168)
0.0873
35
bromine
Br
79.904
[79.901; 79.907]
79
(79)Br
78.918337087(2165)
0.5069
81
(81)Br
80.916290563(2095)
0.4931
36
krypton
Kr
83.798(2)
78
(78)Kr
77.920364783(1153)
0.00355
80
(80)Kr
79.916378965(1577)
0.02286
82
(82)Kr
81.913483600(1910)
0.11593
83
(83)Kr
82.914136099(3019)
0.11500
84
(84)Kr
83.911506687(3010)
0.56987
86
(86)Kr
85.910610729(110)
0.17279
37
rubidium
Rb
85.4678(3)
85
(85)Rb
84.911789737(12)
0.7217
87
(87)Rb
86.909180526(12)
0.2783
38
strontium
Sr
87.62(1)
84
(84)Sr
83.913425275(3437)
0.0056
86
(86)Sr
85.909260204(1152)
0.0986
87
(87)Sr
86.908877124(1152)
0.0700
88
(88)Sr
87.905612124(1163)
0.8258
39
yttrium
Y
88.90585(2)
89
(89)Y
88.905848295(2739)
1.0000
40
zirconium
Zr
91.224(2)
90
(90)Zr
89.904704416(2542)
0.5145
91
(91)Zr
90.905645767(2518)
0.1122
92
(92)Zr
91.905040847(2517)
0.1715
94
(94)Zr
93.906315192(2598)
0.1738
96
(96)Zr
95.908273386(2993)
0.0280
41
niobium
Nb
92.90638(2)
93
(93)Nb
92.906378058(2607)
1.0000
42
molybdenum
Mo
95.96(2)
92
(92)Mo
91.906810991(4083)
0.1477
94
(94)Mo
93.905088269(2058)
0.0923
95
(95)Mo
94.905842129(2057)
0.1590
96
(96)Mo
95.904679477(2057)
0.1668
97
(97)Mo
96.906021465(2053)
0.0956
98
(98)Mo
97.905408169(2054)
0.2419
100
(100)Mo
99.907477336(6285)
0.0967
43
technetium
Tc
[98]
44
ruthenium
Ru
101.07(2)
96
(96)Ru
95.907597835(8461)
0.0554
98
(98)Ru
97.905287132(6732)
0.0187
99
(99)Ru
98.905939302(2158)
0.1276
100
(100)Ru
99.904219476(2158)
0.1260
101
(101)Ru
100.905582087(2161)
0.1706
102
(102)Ru
101.904349312(2162)
0.3155
104
(104)Ru
103.905432701(3367)
0.1862
45
rhodium
Rh
102.90550(2)
103
(103)Rh
102.905504292(3012)
1.0000
46
palladium
Pd
106.42(1)
102
(102)Pd
101.905608544(3207)
0.0102
104
(104)Pd
103.904035834(4436)
0.1114
105
(105)Pd
104.905084920(4372)
0.2233
106
(106)Pd
105.903485715(4372)
0.2733
108
(108)Pd
107.903891701(3695)
0.2646
110
(110)Pd
109.905153254(11672)
0.1172
47
silver
Ag
107.8682(2)
107
(107)Ag
106.905096820(4584)
0.51839
109
(109)Ag
108.904752292(3113)
0.48161
48
cadmium
Cd
112.411(8)
106
(106)Cd
105.906459410(6367)
0.0125
108
(108)Cd
107.904183683(5974)
0.0089
110
(110)Cd
109.903002070(2860)
0.1249
111
(111)Cd
110.904178107(2858)
0.1280
112
(112)Cd
111.902757809(2854)
0.2413
113
(113)Cd
112.904401662(2869)
0.1222
114
(114)Cd
113.903358540(2870)
0.2873
116
(116)Cd
115.904755809(3381)
0.0749
49
indium
In
114.818(1)
113
(113)In
112.904057761(3448)
0.0429
115
(115)In
114.903878484(4791)
0.9571
50
tin
Sn
118.710(7)
112
(112)Sn
111.904818207(4598)
0.0097
114
(114)Sn
113.902778869(3405)
0.0066
115
(115)Sn
114.903342397(3160)
0.0034
116
(116)Sn
115.901740530(3159)
0.1454
117
(117)Sn
116.902951656(3136)
0.0768
118
(118)Sn
117.901603167(3100)
0.2422
119
(119)Sn
118.903307630(3083)
0.0859
120
(120)Sn
119.902194676(2687)
0.3258
122
(122)Sn
121.903439046(2915)
0.0463
124
(124)Sn
123.905273946(1496)
0.0579
51
antimony
Sb
121.760(1)
121
(121)Sb
120.903815686(2359)
0.5721
123
(123)Sb
122.904213970(2223)
0.4279
52
tellurium
Te
127.60(3)
120
(120)Te
119.904020222(1409)
0.0009
122
(122)Te
121.903043898(1599)
0.0255
123
(123)Te
122.904270029(1592)
0.0089
124
(124)Te
123.902817896(1583)
0.0474
125
(125)Te
124.904430731(1583)
0.0707
126
(126)Te
125.903311696(1585)
0.1884
128
(128)Te
127.904463056(1878)
0.3174
130
(130)Te
129.906224399(2067)
0.3408
53
iodine
I
126.90447(3)
127
(127)I
126.904472681(3791)
1.0000
54
xenon
Xe
131.293(6)
124
(124)Xe
123.905893003(1961)
0.000952
126
(126)Xe
125.904273634(6705)
0.000890
128
(128)Xe
127.903531275(1532)
0.019102
129
(129)Xe
128.904779435(793)
0.264006
130
(130)Xe
129.903508007(805)
0.040710
131
(131)Xe
130.905082362(1030)
0.212324
132
(132)Xe
131.904153457(1043)
0.269086
134
(134)Xe
133.905394464(901)
0.104357
136
(136)Xe
135.907218794(7558)
0.088573
55
caesium
Cs
132.9054519(2)
133
(133)Cs
132.905451932(23)
1.0000
56
barium
Ba
137.327(7)
130
(130)Ba
129.906320811(2995)
0.00106
132
(132)Ba
131.905061288(1134)
0.00101
134
(134)Ba
133.904508383(428)
0.02417
135
(135)Ba
134.905688591(442)
0.06592
136
(136)Ba
135.904575945(444)
0.07854
137
(137)Ba
136.905827384(451)
0.11232
138
(138)Ba
137.905247237(453)
0.71698
57
lanthanum
La
138.90547(7)
138
(138)La
137.907111930(3787)
0.00090
139
(139)La
138.906353267(2592)
0.99910
58
cerium
Ce
140.116(1)
136
(136)Ce
135.907172422(14286)
0.00185
138
(138)Ce
137.905991321(1902)
0.00251
140
(140)Ce
139.905438706(2642)
0.88450
142
(142)Ce
141.909244205(3213)
0.11114
59
praseodymium
Pr
140.90765(2)
141
(141)Pr
140.907652769(2649)
1.0000
60
neodymium
Nd
144.242(3)
142
(142)Nd
141.907723297(2498)
0.272
143
(143)Nd
142.909814290(2498)
0.122
144
(144)Nd
143.910087274(2498)
0.238
145
(145)Nd
144.912573636(2505)
0.083
146
(146)Nd
145.913116939(2505)
0.172
148
(148)Nd
147.916893288(3045)
0.057
150
(150)Nd
149.920890888(3418)
0.056
61
promethium
Pm
[145]
62
samarium
Sm
150.36(2)
144
(144)Sm
143.911999478(3013)
0.0307
147
(147)Sm
146.914897923(2589)
0.1499
148
(148)Sm
147.914822674(2594)
0.1124
149
(149)Sm
148.917184735(2622)
0.1382
150
(150)Sm
149.917275539(2611)
0.0738
152
(152)Sm
151.919732425(2652)
0.2675
154
(154)Sm
153.922209273(2735)
0.2275
63
europium
Eu
151.964(1)
151
(151)Eu
150.919850161(2635)
0.4781
153
(153)Eu
152.921230339(2637)
0.5219
64
gadolinium
Gd
157.25(3)
152
(152)Gd
151.919790996(2697)
0.0020
154
(154)Gd
153.920865598(2688)
0.0218
155
(155)Gd
154.922622022(2688)
0.1480
156
(156)Gd
155.922122743(2688)
0.2047
157
(157)Gd
156.923960135(2689)
0.1565
158
(158)Gd
157.924103912(2689)
0.2484
160
(160)Gd
159.927054146(2744)
0.2186
65
terbium
Tb
158.92535(2)
159
(159)Tb
158.925346757(2739)
1.0000
66
dysprosium
Dy
162.500(1)
156
(156)Dy
155.924283110(7073)
0.00056
158
(158)Dy
157.924409487(3647)
0.00095
160
(160)Dy
159.925197517(2721)
0.02329
161
(161)Dy
160.926933364(2721)
0.18889
162
(162)Dy
161.926798447(2721)
0.25475
163
(163)Dy
162.928731159(2720)
0.24896
164
(164)Dy
163.929174751(2720)
0.28260
67
holmium
Ho
164.93032(2)
165
(165)Ho
164.930322070(2710)
1.0000
68
erbium
Er
167.259(3)
162
(162)Er
161.928778264(3721)
0.00139
164
(164)Er
163.929200229(3295)
0.01601
166
(166)Er
165.930293061(2698)
0.33503
167
(167)Er
166.932048159(2696)
0.22869
168
(168)Er
167.932370224(2697)
0.26978
170
(170)Er
169.935464312(2957)
0.14910
69
thulium
Tm
168.93421(2)
169
(169)Tm
168.934213250(2658)
1.0000
70
ytterbium
Yb
173.054(5)
168
(168)Yb
167.933896895(4713)
0.0013
170
(170)Yb
169.934761837(2628)
0.0304
171
(171)Yb
170.936325799(2576)
0.1428
172
(172)Yb
171.936381469(2574)
0.2183
173
(173)Yb
172.938210787(2563)
0.1613
174
(174)Yb
173.938862089(2563)
0.3183
176
(176)Yb
175.942571683(2760)
0.1276
71
lutetium
Lu
174.9668(1)
175
(175)Lu
174.940771819(2347)
0.9741
176
(176)Lu
175.942686310(2344)
0.0259
72
hafnium
Hf
178.49(2)
174
(174)Hf
173.940046178(3012)
0.0016
176
(176)Hf
175.941408631(2379)
0.0526
177
(177)Hf
176.943220651(2304)
0.1860
178
(178)Hf
177.943698766(2301)
0.2728
179
(179)Hf
178.945816145(2301)
0.1362
180
(180)Hf
179.946549953(2304)
0.3508
73
tantalum
Ta
180.94788(2)
180
(180)Ta
179.947464831(2379)
0.00012
181
(181)Ta
180.947995763(1924)
0.99988
74
tungsten
W
183.84(1)
180
(180)W
179.946704459(4219)
0.0012
182
(182)W
181.948204156(889)
0.2650
183
(183)W
182.950222951(884)
0.1431
184
(184)W
183.950931188(922)
0.3064
186
(186)W
185.954364127(1877)
0.2843
75
rhenium
Re
186.207(1)
185
(185)Re
184.952954982(1280)
0.3740
187
(187)Re
186.955753109(1513)
0.6260
76
osmium
Os
190.23(3)
184
(184)Os
183.952489071(1399)
0.0002
186
(186)Os
185.953838158(1481)
0.0159
187
(187)Os
186.955750458(1513)
0.0196
188
(188)Os
187.955838228(1518)
0.1324
189
(189)Os
188.958147470(1572)
0.1615
190
(190)Os
189.958447048(1580)
0.2626
192
(192)Os
191.961480690(2743)
0.4078
77
iridium
Ir
192.217(3)
191
(191)Ir
190.960594046(1790)
0.373
193
(193)Ir
192.962926430(1795)
0.627
78
platinum
Pt
195.084(9)
190
(190)Pt
189.959931655(6124)
0.00014
192
(192)Pt
191.961038005(2651)
0.00782
194
(194)Pt
193.962680253(948)
0.32967
195
(195)Pt
194.964791134(940)
0.33832
196
(196)Pt
195.964951521(931)
0.25242
198
(198)Pt
197.967892790(3341)
0.07163
79
gold
Au
196.966569(4)
197
(197)Au
196.966568662(646)
1.0000
80
mercury
Hg
200.592(3)
196
(196)Hg
195.965832649(3158)
0.0015
198
(198)Hg
197.966769032(362)
0.0997
199
(199)Hg
198.968279932(392)
0.1687
200
(200)Hg
199.968326004(406)
0.2310
201
(201)Hg
200.970302268(638)
0.1318
202
(202)Hg
201.970643011(634)
0.2986
204
(204)Hg
203.973493933(364)
0.0687
81
thallium
Tl
204.38
[204.382; 204.385]
203
(203)Tl
202.972344220(1365)
0.2952
205
(205)Tl
204.974427541(1422)
0.7048
82
lead
Pb
207.2(1)
204
(204)Pb
203.973043589(1335)
0.014
206
(206)Pb
205.974465278(1331)
0.241
207
(207)Pb
206.975896887(1334)
0.221
208
(208)Pb
207.976652071(1335)
0.524
83
bismuth
Bi
208.98040(1)
209
(209)Bi
208.980398734(1554)
1.0000
84
polonium
Po
[209]
85
astatine
At
[210]
86
radon
Rn
[222]
87
francium
Fr
[223]
88
radium
Ra
[226]
89
actinium
Ac
[227]
90
thorium
Th
232.03806(2)
232
(232)Th
232.038055325(2137)
1.0000
91
protactinium
Pa
231.03588(2)
231
(231)Pa
231.035883990(2422)
1.0000
92
uranium
U
238.02891(3)
234
(234)U
234.040952088(1960)
0.000054
235
(235)U
235.043929918(1957)
0.007204
238
(238)U
238.050788247(2044)
0.992742
93
neptunium
Np
[237]
94
plutonium
Pu
[244]
95
americium
Am
[243]
96
curium
Cm
[247]
97
berkelium
Bk
[247]
98
californium
Cf
[251]
99
einsteinium
Es
[252]
100
fermium
Fm
[257]
101
mendelevium
Md
[258]
102
nobelium
No
[259]
103
lawrencium
Lr
[262]
104
rutherfordium
Rf
[267]
105
dubnium
Db
[268]
106
seaborgium
Sg
[271]
107
bohrium
Bh
[272]
108
hassium
Hs
[270]
109
meitnerium
Mt
[276]
110
darmstadtium
Ds
[281]
111
roentgenium
Rg
[280]
112
copernicium
Cn
[285]
113
ununtrium
Uut
[284]
114
ununquadium
Uuq
[289]
115
ununpentium
Uup
[288]
116
ununhexium
Uuh
[293]
118
ununoctium
Uuo
[294]