Difference between revisions of "Data:Atomic weights of the elements 2007"

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| align=right | 1 || [[hydrogen]] || H || 1.007 94(7) || g m r
 
| align=right | 1 || [[hydrogen]] || H || 1.007 94(7) || g m r
 
|-
 
|-
−
| 2 || [[helium]] || He || 4.002 602(2) || g r
+
| align=right | 2 || [[helium]] || He || 4.002 602(2) || g r
 
|-
 
|-
−
| 3 || [[lithium]] || Li || [6.941(2)]† || g m r
+
| align=right | 3 || [[lithium]] || Li || [6.941(2)]† || g m r
 
|-
 
|-
−
| 4 || [[beryllium]] || Be || 9.012 182(3) ||
+
| align=right | 4 || [[beryllium]] || Be || 9.012 182(3) ||
 
|-
 
|-
−
| 5 || [[boron]] || B || 10.811(7) || g m r
+
| align=right | 5 || [[boron]] || B || 10.811(7) || g m r
 
|-
 
|-
−
| 6 || [[carbon]] || C || 12.0107(8) || g r
+
| align=right | 6 || [[carbon]] || C || 12.0107(8) || g r
 
|-
 
|-
−
| 7 || [[nitrogen]] || N || 14.0067(2) || g r
+
| align=right | 7 || [[nitrogen]] || N || 14.0067(2) || g r
 
|-
 
|-
−
| 8 || [[oxygen]] || O || 15.9994(3) || g r
+
| align=right | 8 || [[oxygen]] || O || 15.9994(3) || g r
 
|-
 
|-
−
| 9 || [[fluorine]] || F || 18.998 4032(5) ||
+
| align=right | 9 || [[fluorine]] || F || 18.998 4032(5) ||
 
|-
 
|-
−
| 10 || [[neon]] || Ne || 20.1797(6) || g m
+
| align=right | 10 || [[neon]] || Ne || 20.1797(6) || g m
 
|-
 
|-
−
| 11 || [[sodium]] || Na || 22.989 769 28(2) ||
+
| align=right | 11 || [[sodium]] || Na || 22.989 769 28(2) ||
 
|-
 
|-
−
| 12 || [[magnesium]] || Mg || 24.3050(6) ||
+
| align=right | 12 || [[magnesium]] || Mg || 24.3050(6) ||
 
|-
 
|-
−
| 13 || [[aluminium]] || Al || 26.981 5386(8) ||
+
| align=right | 13 || [[aluminium]] || Al || 26.981 5386(8) ||
 
|-
 
|-
−
| 14 || [[silicon]] || Si || 28.0855(3) || r
+
| align=right | 14 || [[silicon]] || Si || 28.0855(3) || r
 
|-
 
|-
−
| 15 || [[phosphorus]] || P || 30.973 762(2) ||
+
| align=right | 15 || [[phosphorus]] || P || 30.973 762(2) ||
 
|-
 
|-
−
| 16 || [[sulfur]] || S || 32.065(5) || g r
+
| align=right | 16 || [[sulfur]] || S || 32.065(5) || g r
 
|-
 
|-
−
| 17 || [[chlorine]] || Cl || 35.453(2) || g m r
+
| align=right | 17 || [[chlorine]] || Cl || 35.453(2) || g m r
 
|-
 
|-
−
| 18 || [[argon]] || Ar || 39.948(1) || g r
+
| align=right | 18 || [[argon]] || Ar || 39.948(1) || g r
 
|-
 
|-
−
| 19 || [[potassium]] || K || 39.0983(1) ||
+
| align=right | 19 || [[potassium]] || K || 39.0983(1) ||
 +
|-
 +
| align=right | 20 || [[calcium]] || Ca || 40.078(4) || g
 +
|-
 +
| align=right | 21 || [[scandium]] || Sc || 44.955 912(6) ||
 +
|-
 +
| align=right | 22 || [[titanium]] || Ti || 47.867(1) ||
 +
|-
 +
| align=right | 23 || [[vanadium]] || V || 50.9415(1) ||
 +
|-
 +
| align=right | 24 || [[chromium]] || Cr || 51.9961(6) ||
 +
|-
 +
| align=right | 25 || [[manganese]] || Mn || 54.938 045(5) ||
 +
|-
 +
| align=right | 26 || [[iron]] || Fe || 55.845(2) ||
 +
|-
 +
| align=right | 27 || [[cobalt]] || Co || 58.933 195(5) ||
 +
|-
 +
| align=right | 28 || [[nickel]] || Ni || 58.6934(4) || r
 +
|-
 +
| align=right | 29 || [[copper]] || Cu || 63.546(3) || r
 +
|-
 +
| align=right | 30 || [[zinc]] || Zn || 65.38(2) || r
 +
|-
 +
| align=right | 31 || [[gallium]] || Ga || 69.723(1) ||
 +
|-
 +
| align=right | 32 || [[germanium]] || Ge || 72.64(1) ||
 +
|-
 +
| align=right | 33 || [[arsenic]] || As || 74.921 60(2) ||
 +
|-
 +
| align=right | 34 || [[selenium]] || Se || 78.96(3) || r
 +
|-
 +
| align=right | 35 || [[bromine]] || Br || 79.904(1) ||
 +
|-
 +
| align=right | 36 || [[krypton]] || Kr || 83.798(2) || g m
 +
|-
 +
| align=right | 37 || [[rubidium]] || Rb || 85.4678(3) || g
 +
|-
 +
| align=right | 38 || [[strontium]] || Sr || 87.62(1) || g r
 +
|-
 +
| align=right | 39 || [[yttrium]] || Y || 88.905 85(2) ||
 +
|-
 +
| align=right | 40 || [[zirconium]] || Zr || 91.224(2) || g
 +
|-
 +
| align=right | 41 || [[niobium]] || Nb || 92.906 38(2) ||
 +
|-
 +
| align=right | 42 || [[molybdenum]] || Mo || 95.96(2) || g r
 +
|-
 +
| align=right | 44 || [[ruthenium]] || Ru || 101.07(2) || g
 +
|-
 +
| align=right | 45 || [[rhodium]] || Rh || 102.905 50(2) ||
 +
|-
 +
| align=right | 46 || [[palladium]] || Pd || 106.42(1) || g
 +
|-
 +
| align=right | 47 || [[silver]] || Ag || 107.8682(2) || g
 +
|-
 +
| align=right | 48 || [[cadmium]] || Cd || 112.411(8) || g
 +
|-
 +
| align=right | 49 || [[indium]] || In || 114.818(3) ||
 +
|-
 +
| align=right | 50 || [[tin]] || Sn || 118.710(7) || g
 +
|-
 +
| align=right | 51 || [[antimony]] || Sb || 121.760(1) || g
 +
|-
 +
| align=right | 52 || [[tellurium]] || Te || 127.60(3) || g
 +
|-
 +
| align=right | 53 || [[iodine]] || I || 126.904 47(3) ||
 +
|-
 +
| align=right | 54 || [[xenon]] || Xe || 131.293(6) || g m
 +
|-
 +
| align=right | 55 || [[caesium]] || Cs || 132.905 4519(2) ||
 +
|-
 +
| align=right | 56 || [[barium]] || Ba || 137.327(7) ||
 +
|-
 +
| align=right | 57 || [[lanthanum]] || La || 138.905 47(7) || g
 +
|-
 +
| align=right | 58 || [[cerium]] || Ce || 140.116(1) || g
 +
|-
 +
| align=right | 59 || [[praseodymium]] || Pr || 140.907 65(2) ||
 +
|-
 +
| align=right | 60 || [[neodymium]] || Nd || 144.242(3) || g
 +
|-
 +
| align=right | 62 || [[samarium]] || Sm || 150.36(2) || g
 +
|-
 +
| align=right | 63 || [[europium]] || Eu || 151.964(1) || g
 +
|-
 +
| align=right | 64 || [[gadolinium]] || Gd || 157.25(3) || g
 +
|-
 +
| align=right | 65 || [[terbium]] || Tb || 158.925 35(2) ||
 +
|-
 +
| align=right | 66 || [[dysprosium]] || Dy || 162.500(1) || g
 +
|-
 +
| align=right | 67 || [[holmium]] || Ho || 164.930 32(2) ||
 +
|-
 +
| align=right | 68 || [[erbium]] || Er || 167.259(3) || g
 +
|-
 +
| align=right | 69 || [[thulium]] || Tm || 168.934 21(2) ||
 +
|-
 +
| align=right | 70 || [[ytterbium]] || Yb || 173.054(5) || g
 +
|-
 +
| align=right | 71 || [[lutetium]] || Lu || 174.9668(1) || g
 +
|-
 +
| align=right | 72 || [[hafnium]] || Hf || 178.49(2) ||
 +
|-
 +
| align=right | 73 || [[tantalum]] || Ta || 180.947 88(2) ||
 +
|-
 +
| align=right | 74 || [[tungsten]] || W || 183.84(1) ||
 +
|-
 +
| align=right | 75 || [[rhenium]] || Re || 186.207(1) ||
 +
|-
 +
| align=right | 76 || [[osmium]] || Os || 190.23(3) || g
 +
|-
 +
| align=right | 77 || [[iridium]] || Ir || 192.217(3) ||
 +
|-
 +
| align=right | 78 || [[platinum]] || Pt || 195.084(9) ||
 +
|-
 +
| align=right | 79 || [[gold]] || Au || 196.966 569(4) ||
 +
|-
 +
| align=right | 80 || [[mercury]] || Hg || 200.59(2) ||
 +
|-
 +
| align=right | 81 || [[thallium]] || Tl || 204.3833(2) ||
 +
|-
 +
| align=right | 82 || [[lead]] || Pb || 207.2(1) || g r
 +
|-
 +
| align=right | 83 || [[bismuth]] || Bi || 208.980 40(1) ||
 +
|-
 +
| align=right | 90 || [[thorium]]* || Th || 232.038 06(2) || g
 +
|-
 +
| align=right | 91 || [[protactinium]]* || Pa || 231.035 88(2) ||
 +
|-
 +
| align=right | 92 || [[uranium]]* || U || 238.028 91(3) || g m
 
|-
 
|-
 
|}
 
|}
−
<!--
 
−
20 calcium Ca 40.078(4) g
 
−
21 scandium Sc 44.955 912(6)
 
−
22 titanium Ti 47.867(1)
 
−
23 vanadium V 50.9415(1)
 
−
24 chromium Cr 51.9961(6)
 
−
25 manganese Mn 54.938 045(5)
 
−
26 iron Fe 55.845(2)
 
−
27 cobalt Co 58.933 195(5)
 
−
28 nickel Ni 58.6934(4) r
 
−
29 copper Cu 63.546(3) r
 
−
30 zinc Zn 65.38(2) r
 
−
31 gallium Ga 69.723(1)
 
−
32 germanium Ge 72.64(1)
 
−
33 arsenic As 74.921 60(2)
 
−
34 selenium Se 78.96(3) r
 
−
35 bromine Br 79.904(1)
 
−
36 krypton Kr 83.798(2) g m
 
−
37 rubidium Rb 85.4678(3) g
 
−
38 strontium Sr 87.62(1) g r
 
−
39 yttrium Y 88.905 85(2)
 
−
40 zirconium Zr 91.224(2) g
 
−
41 niobium Nb 92.906 38(2)
 
−
42 molybdenum Mo 95.96(2) g r
 
−
44 ruthenium Ru 101.07(2) g
 
−
45 rhodium Rh 102.905 50(2)
 
−
46 palladium Pd 106.42(1) g
 
−
47 silver Ag 107.8682(2) g
 
−
48 cadmium Cd 112.411(8) g
 
−
49 indium In 114.818(3)
 
−
50 tin Sn 118.710(7) g
 
−
51 antimony Sb 121.760(1) g
 
−
52 tellurium Te 127.60(3) g
 
−
53 iodine I 126.904 47(3)
 
−
54 xenon Xe 131.293(6) g m
 
−
55 caesium (cesium) Cs 132.905 451 9(2)
 
−
56 barium Ba 137.327(7)
 
−
57 lanthanum La 138.905 47(7) g
 
−
58 cerium Ce 140.116(1) g
 
−
59 praseodymium Pr 140.907 65(2)
 
−
60 neodymium Nd 144.242(3) g
 
−
62 samarium Sm 150.36(2) g
 
−
63 europium Eu 151.964(1) g
 
−
64 gadolinium Gd 157.25(3) g
 
−
65 terbium Tb 158.925 35(2)
 
−
66 dysprosium Dy 162.500(1) g
 
−
67 holmium Ho 164.930 32(2)
 
−
68 erbium Er 167.259(3) g
 
−
69 thulium Tm 168.934 21(2)
 
−
70 ytterbium Yb 173.054(5) g
 
−
71 lutetium Lu 174.9668(1) g
 
−
72 hafnium Hf 178.49(2)
 
−
73 tantalum Ta 180.947 88(2)
 
−
74 tungsten W 183.84(1)
 
−
75 rhenium Re 186.207(1)
 
−
76 osmium Os 190.23(3) g
 
−
77 iridium Ir 192.217(3)
 
−
78 platinum Pt 195.084(9)
 
−
79 gold Au 196.966 569(4)
 
−
80 mercury Hg 200.59(2)
 
−
81 thallium Tl 204.3833(2)
 
−
82 lead Pb 207.2(1) g r
 
−
83 bismuth Bi 208.980 40(1)
 
−
90 thorium* Th 232.038 06(2) g
 
−
91 protactinium* Pa 231.035 88(2)
 
−
92 uranium* U 238.028 91(3) g m
 
−
-->
 
  
 
==Footnotes to table==
 
==Footnotes to table==

Revision as of 04:31, 21 March 2010

The following is the 2007 IUPAC list of standard atomic weights approved by the Commission on Isotopic Abundances and Atomic Weights (CIAAW) and published in Pure and Applied Chemistry.[1] Elements with no stable isotopes (Tc, Pm, Po–) have been omitted, except for thorium, protactinium and uranium which have a charcteristic terrestrial isotopic composition.

Z Name Symbol Atomic weight Footnotes
1 hydrogen H 1.007 94(7) g m r
2 helium He 4.002 602(2) g r
3 lithium Li [6.941(2)]† g m r
4 beryllium Be 9.012 182(3)
5 boron B 10.811(7) g m r
6 carbon C 12.0107(8) g r
7 nitrogen N 14.0067(2) g r
8 oxygen O 15.9994(3) g r
9 fluorine F 18.998 4032(5)
10 neon Ne 20.1797(6) g m
11 sodium Na 22.989 769 28(2)
12 magnesium Mg 24.3050(6)
13 aluminium Al 26.981 5386(8)
14 silicon Si 28.0855(3) r
15 phosphorus P 30.973 762(2)
16 sulfur S 32.065(5) g r
17 chlorine Cl 35.453(2) g m r
18 argon Ar 39.948(1) g r
19 potassium K 39.0983(1)
20 calcium Ca 40.078(4) g
21 scandium Sc 44.955 912(6)
22 titanium Ti 47.867(1)
23 vanadium V 50.9415(1)
24 chromium Cr 51.9961(6)
25 manganese Mn 54.938 045(5)
26 iron Fe 55.845(2)
27 cobalt Co 58.933 195(5)
28 nickel Ni 58.6934(4) r
29 copper Cu 63.546(3) r
30 zinc Zn 65.38(2) r
31 gallium Ga 69.723(1)
32 germanium Ge 72.64(1)
33 arsenic As 74.921 60(2)
34 selenium Se 78.96(3) r
35 bromine Br 79.904(1)
36 krypton Kr 83.798(2) g m
37 rubidium Rb 85.4678(3) g
38 strontium Sr 87.62(1) g r
39 yttrium Y 88.905 85(2)
40 zirconium Zr 91.224(2) g
41 niobium Nb 92.906 38(2)
42 molybdenum Mo 95.96(2) g r
44 ruthenium Ru 101.07(2) g
45 rhodium Rh 102.905 50(2)
46 palladium Pd 106.42(1) g
47 silver Ag 107.8682(2) g
48 cadmium Cd 112.411(8) g
49 indium In 114.818(3)
50 tin Sn 118.710(7) g
51 antimony Sb 121.760(1) g
52 tellurium Te 127.60(3) g
53 iodine I 126.904 47(3)
54 xenon Xe 131.293(6) g m
55 caesium Cs 132.905 4519(2)
56 barium Ba 137.327(7)
57 lanthanum La 138.905 47(7) g
58 cerium Ce 140.116(1) g
59 praseodymium Pr 140.907 65(2)
60 neodymium Nd 144.242(3) g
62 samarium Sm 150.36(2) g
63 europium Eu 151.964(1) g
64 gadolinium Gd 157.25(3) g
65 terbium Tb 158.925 35(2)
66 dysprosium Dy 162.500(1) g
67 holmium Ho 164.930 32(2)
68 erbium Er 167.259(3) g
69 thulium Tm 168.934 21(2)
70 ytterbium Yb 173.054(5) g
71 lutetium Lu 174.9668(1) g
72 hafnium Hf 178.49(2)
73 tantalum Ta 180.947 88(2)
74 tungsten W 183.84(1)
75 rhenium Re 186.207(1)
76 osmium Os 190.23(3) g
77 iridium Ir 192.217(3)
78 platinum Pt 195.084(9)
79 gold Au 196.966 569(4)
80 mercury Hg 200.59(2)
81 thallium Tl 204.3833(2)
82 lead Pb 207.2(1) g r
83 bismuth Bi 208.980 40(1)
90 thorium* Th 232.038 06(2) g
91 protactinium* Pa 231.035 88(2)
92 uranium* U 238.028 91(3) g m

Footnotes to table

References

  1. ↑ Atomic Weights of the Elements 2007. Pure Appl. Chem. 2009, 81 (11), 2131–56. DOI: 10.1351/PAC-REP-09-08-03.

External links

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