| Standard atomic weights of the elements overview page (data) |
| Element |
Ar, standard |
abridged |
conventional |
→ formal short |
→ short, rounded |
m.s.i. |
Decimals ({{calc molar mass}}) |
Year changed |
note |
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
H |
ҳидроген |
[7000100784000000000♠1.00784, 7000100811000000000♠1.00811] |
[7000100780000000000♠1.0078, 7000100820000000000♠1.0082] |
7000100800000000000♠1.008 |
7000100800000000000♠1.008 |
7000100800000000000♠1.008 |
|
3 |
2009 |
|
| 2 |
He |
ҳелий |
7000400260200000000♠4.002602(2) |
7000400260000000000♠4.0026 |
|
7000400260000000000♠4.0026 |
7000400260000000000♠4.0026 |
|
6 |
|
|
| 3 |
Li |
литий |
[7000693800000000000♠6.938, 7000699700000000000♠6.997] |
[7000693800000000000♠6.938, 7000699700000000000♠6.997] |
7000694000000000000♠6.94 |
7000694000000000000♠6.94 |
7000694000000000000♠6.94 |
|
2 |
2009 |
|
| 4 |
Be |
бериллий |
7000901218310000000♠9.0121831(5) |
7000901220000000000♠9.0122 |
|
7000901220000000000♠9.0122 |
7000901220000000000♠9.0122 |
|
7 |
|
|
| 5 |
B |
бор |
[7001108059999999999♠10.806, 7001108210000000000♠10.821] |
[7001108059999999999♠10.806, 7001108210000000000♠10.821] |
7001108100000000000♠10.81 |
7001108100000000000♠10.81 |
7001108100000000000♠10.81 |
|
2 |
2009 |
|
| 6 |
C |
карбон |
[7001120096000000000♠12.0096, 7001120116000000000♠12.0116] |
[7001120090000000000♠12.009, 7001120120000000000♠12.012] |
7001120110000000000♠12.011 |
7001120110000000000♠12.011 |
7001120110000000000♠12.011 |
|
3 |
2009 |
|
| 7 |
N |
натрий |
[7001140064300000000♠14.00643, 7001140072800000000♠14.00728] |
[7001140060000000000♠14.006, 7001140079999999999♠14.008] |
7001140070000000000♠14.007 |
7001140070000000000♠14.007 |
7001140070000000000♠14.007 |
|
3 |
2009 |
|
| 8 |
O |
оксиген |
[7001159990300000000♠15.99903, 7001159997700000000♠15.99977] |
[7001159990000000000♠15.999, 7001160000000000000♠16.000] |
7001159990000000000♠15.999 |
7001159990000000000♠15.999 |
7001159990000000000♠15.999 |
|
3 |
2009 |
|
| 9 |
F |
фтор |
7001189984031630000♠18.998403163(6) |
7001189980000000000♠18.998 |
|
7001189980000000000♠18.998 |
7001189980000000000♠18.998 |
|
9 |
|
|
| 10 |
Ne |
неон |
7001201797000000000♠20.1797(6) |
7001201800000000000♠20.180 |
|
7001201800000000000♠20.180 |
7001201800000000000♠20.180 |
|
4 |
|
|
| 11 |
Na |
натрий |
7001229897692800000♠22.98976928(2) |
7001229899999999999♠22.990 |
|
7001229899999999999♠22.990 |
7001229899999999999♠22.990 |
|
8 |
|
|
| 12 |
Mg |
магний |
[7001243040000000000♠24.304, 7001243070000000000♠24.307] |
[7001243040000000000♠24.304, 7001243070000000000♠24.307] |
7001243050000000000♠24.305 |
7001243050000000000♠24.305 |
7001243050000000000♠24.305 |
|
3 |
2011 |
|
| 13 |
Al |
алюминий |
7001269815384000000♠26.9815384(3) |
7001269820000000000♠26.982 |
|
7001269820000000000♠26.982 |
7001269820000000000♠26.982 |
|
7 |
2017 |
|
| 14 |
Si |
силитсий |
[7001280840000000000♠28.084, 7001280860000000000♠28.086] |
[7001280840000000000♠28.084, 7001280860000000000♠28.086] |
7001280850000000000♠28.085 |
7001280850000000000♠28.085 |
7001280850000000000♠28.085 |
|
3 |
2009 |
|
| 15 |
P |
фосфор |
7001309737619980000♠30.973761998(5) |
7001309740000000000♠30.974 |
|
7001309740000000000♠30.974 |
7001309740000000000♠30.974 |
|
9 |
|
|
| 16 |
S |
сулфур |
[7001320590000000000♠32.059, 7001320760000000000♠32.076] |
[7001320590000000000♠32.059, 7001320760000000000♠32.076] |
7001320600000000000♠32.06 |
7001320600000000000♠32.06 |
7001320600000000000♠32.06 |
|
2 |
2009 |
|
| 17 |
Cl |
хлор |
[7001354460000000000♠35.446, 7001354570000000000♠35.457] |
[7001354460000000000♠35.446, 7001354570000000000♠35.457] |
7001354500000000000♠35.45 |
7001354500000000000♠35.45 |
7001354500000000000♠35.45 |
|
2 |
2009 |
|
| 18 |
Ar |
аргон |
[7001397920000000000♠39.792, 7001399630000000000♠39.963] |
[7001397920000000000♠39.792, 7001399630000000000♠39.963] |
7001399500000000000♠39.95[1] |
7001399500000000000♠39.95 |
7001399500000000000♠39.95 |
|
2 |
2017 |
interval per 2017, no short values published yet
|
| 19 |
K |
калий |
7001390983000000000♠39.0983(1) |
7001390980000000000♠39.098 |
|
7001390980000000000♠39.098 |
7001390980000000000♠39.098 |
|
4 |
|
|
| 20 |
Ca |
калсий |
7001400780000000000♠40.078(4) |
7001400780000000000♠40.078(4) |
|
7001400780000000000♠40.078(4) |
7001400780000000000♠40.078 |
|
3 |
|
|
| 21 |
Sc |
скандий |
7001449559080000000♠44.955908(5) |
7001449560000000000♠44.956 |
|
7001449560000000000♠44.956 |
7001449560000000000♠44.956 |
|
6 |
|
|
| 22 |
Ti |
титан |
7001478670000000000♠47.867(1) |
7001478670000000000♠47.867 |
|
7001478670000000000♠47.867 |
7001478670000000000♠47.867 |
|
3 |
|
|
| 23 |
V |
ванадий |
7001509415000000000♠50.9415(1) |
7001509420000000000♠50.942 |
|
7001509420000000000♠50.942 |
7001509420000000000♠50.942 |
|
4 |
|
|
| 24 |
Cr |
хром |
7001519961000000000♠51.9961(6) |
7001519960000000000♠51.996 |
|
7001519960000000000♠51.996 |
7001519960000000000♠51.996 |
|
4 |
|
|
| 25 |
Mn |
манган |
7001549380430000000♠54.938043(2) |
7001549380000000000♠54.938 |
|
7001549380000000000♠54.938 |
7001549380000000000♠54.938 |
|
6 |
2017 |
|
| 26 |
Fe |
оҳан |
7001558450000000000♠55.845(2) |
7001558450000000000♠55.845(2) |
|
7001558450000000000♠55.845(2) |
7001558450000000000♠55.845 |
|
3 |
|
|
| 27 |
Co |
кобалт |
7001589331940000000♠58.933194(3) |
7001589330000000000♠58.933 |
|
7001589330000000000♠58.933 |
7001589330000000000♠58.933 |
|
6 |
2017 |
|
| 28 |
Ni |
никел |
7001586934000000000♠58.6934(4) |
7001586930000000000♠58.693 |
|
7001586930000000000♠58.693 |
7001586930000000000♠58.693 |
|
4 |
|
|
| 29 |
Cu |
мис |
7001635460000000000♠63.546(3) |
7001635460000000000♠63.546(3) |
|
7001635460000000000♠63.546(3) |
7001635460000000000♠63.546 |
|
3 |
|
|
| 30 |
Zn |
руҳ |
7001653800000000000♠65.38(2) |
7001653800000000000♠65.38(2) |
|
7001653800000000000♠65.38(2) |
7001653800000000000♠65.38 |
|
2 |
|
|
| 31 |
Ga |
галлий |
7001697230000000000♠69.723(1) |
7001697230000000000♠69.723 |
|
7001697230000000000♠69.723 |
7001697230000000000♠69.723 |
|
3 |
|
|
| 32 |
Ge |
германий |
7001726300000000000♠72.630(8) |
7001726300000000000♠72.630(8) |
|
7001726300000000000♠72.630(8) |
7001726300000000000♠72.630 |
|
3 |
2009 |
|
| 33 |
As |
арсен |
7001749215950000000♠74.921595(6) |
7001749220000000000♠74.922 |
|
7001749220000000000♠74.922 |
7001749220000000000♠74.922 |
|
6 |
|
|
| 34 |
Se |
селен |
7001789710000000000♠78.971(8) |
7001789710000000000♠78.971(8) |
|
7001789710000000000♠78.971(8) |
7001789710000000000♠78.971 |
|
3 |
|
|
| 35 |
Br |
бром |
[7001799010000000000♠79.901, 7001799070000000000♠79.907] |
[7001799010000000000♠79.901, 7001799070000000000♠79.907] |
7001799040000000000♠79.904 |
7001799040000000000♠79.904 |
7001799040000000000♠79.904 |
|
3 |
2011 |
|
| 36 |
Kr |
криптон |
7001837980000000000♠83.798(2) |
7001837980000000000♠83.798(2) |
|
7001837980000000000♠83.798(2) |
7001837980000000000♠83.798 |
|
3 |
|
|
| 37 |
Rb |
рубидий |
7001854678000000000♠85.4678(3) |
7001854680000000000♠85.468 |
|
7001854680000000000♠85.468 |
7001854680000000000♠85.468 |
|
4 |
|
|
| 38 |
Sr |
стронсий |
7001876200000000000♠87.62(1) |
7001876200000000000♠87.62 |
|
7001876200000000000♠87.62 |
7001876200000000000♠87.62 |
|
2 |
|
|
| 39 |
Y |
иттрий |
7001889058400000000♠88.90584(1) |
7001889060000000000♠88.906 |
|
7001889060000000000♠88.906 |
7001889060000000000♠88.906 |
|
5 |
2017 |
|
| 40 |
Zr |
сирконий |
7001912240000000000♠91.224(2) |
7001912240000000000♠91.224(2) |
|
7001912240000000000♠91.224(2) |
7001912240000000000♠91.224 |
|
3 |
|
|
| 41 |
Nb |
ниобий |
7001929063700000000♠92.90637(1) |
7001929060000000000♠92.906 |
|
7001929060000000000♠92.906 |
7001929060000000000♠92.906 |
|
5 |
2017 |
|
| 42 |
Mo |
молибден |
7001959500000000000♠95.95(1) |
7001959500000000000♠95.95 |
|
7001959500000000000♠95.95 |
7001959500000000000♠95.95 |
|
2 |
|
|
| 43 |
Tc |
технетсий |
- |
|
|
|
|
[97] |
0 |
|
|
| 44 |
Ru |
рутений |
7002101070000000000♠101.07(2) |
7002101070000000000♠101.07(2) |
|
7002101070000000000♠101.07(2) |
7002101070000000000♠101.07 |
|
2 |
|
|
| 45 |
Rh |
родий |
7002102905490000000♠102.90549(2) |
7002102910000000000♠102.91 |
|
7002102910000000000♠102.91 |
7002102910000000000♠102.91 |
|
5 |
2017 |
|
| 46 |
Pd |
палладий |
7002106420000000000♠106.42(1) |
7002106420000000000♠106.42 |
|
7002106420000000000♠106.42 |
7002106420000000000♠106.42 |
|
2 |
|
|
| 47 |
Ag |
нуқра |
7002107868200000000♠107.8682(2) |
7002107870000000000♠107.87 |
|
7002107870000000000♠107.87 |
7002107870000000000♠107.87 |
|
4 |
|
|
| 48 |
Cd |
кадмий |
7002112414000000000♠112.414(4) |
7002112410000000000♠112.41 |
|
7002112410000000000♠112.41 |
7002112410000000000♠112.41 |
|
3 |
|
|
| 49 |
In |
индий |
7002114818000000000♠114.818(1) |
7002114820000000000♠114.82 |
|
7002114820000000000♠114.82 |
7002114820000000000♠114.82 |
|
3 |
|
|
| 50 |
Sn |
қалъагӣ |
7002118710000000000♠118.710(7) |
7002118710000000000♠118.71 |
|
7002118710000000000♠118.71 |
7002118710000000000♠118.71 |
|
3 |
|
|
| 51 |
Sb |
сурма |
7002121760000000000♠121.760(1) |
7002121760000000000♠121.76 |
|
7002121760000000000♠121.76 |
7002121760000000000♠121.76 |
|
3 |
|
|
| 52 |
Te |
теллур |
7002127600000000000♠127.60(3) |
7002127600000000000♠127.60(3) |
|
7002127600000000000♠127.60(3) |
7002127600000000000♠127.60 |
|
2 |
|
|
| 53 |
I |
йод |
7002126904470000000♠126.90447(3) |
7002126900000000000♠126.90 |
|
7002126900000000000♠126.90 |
7002126900000000000♠126.90 |
|
5 |
|
|
| 54 |
Xe |
ксенон |
7002131293000000000♠131.293(6) |
7002131289999999999♠131.29 |
|
7002131289999999999♠131.29 |
7002131289999999999♠131.29 |
|
3 |
|
|
| 55 |
Cs |
сезий |
7002132905451960000♠132.90545196(6) |
7002132910000000000♠132.91 |
|
7002132910000000000♠132.91 |
7002132910000000000♠132.91 |
|
8 |
|
|
| 56 |
Ba |
барий |
7002137327000000000♠137.327(7) |
7002137330000000000♠137.33 |
|
7002137330000000000♠137.33 |
7002137330000000000♠137.33 |
|
3 |
|
|
| 57 |
La |
лантан |
7002138905470000000♠138.90547(7) |
7002138910000000000♠138.91 |
|
7002138910000000000♠138.91 |
7002138910000000000♠138.91 |
|
5 |
|
|
| 58 |
Ce |
серий |
7002140116000000000♠140.116(1) |
7002140120000000000♠140.12 |
|
7002140120000000000♠140.12 |
7002140120000000000♠140.12 |
|
3 |
|
|
| 59 |
Pr |
празеодим |
7002140907660000000♠140.90766(1) |
7002140910000000000♠140.91 |
|
7002140910000000000♠140.91 |
7002140910000000000♠140.91 |
|
5 |
2017 |
|
| 60 |
Nd |
неодим |
7002144242000000000♠144.242(3) |
7002144240000000000♠144.24 |
|
7002144240000000000♠144.24 |
7002144240000000000♠144.24 |
|
3 |
|
|
| 61 |
Pm |
прометий |
- |
|
|
|
|
[145] |
0 |
|
|
| 62 |
Sm |
самарий |
7002150360000000000♠150.36(2) |
7002150360000000000♠150.36(2) |
|
7002150360000000000♠150.36(2) |
7002150360000000000♠150.36 |
|
2 |
|
|
| 63 |
Eu |
европий |
7002151964000000000♠151.964(1) |
7002151960000000000♠151.96 |
|
7002151960000000000♠151.96 |
7002151960000000000♠151.96 |
|
3 |
|
|
| 64 |
Gd |
гадолиний |
7002157250000000000♠157.25(3) |
7002157250000000000♠157.25(3) |
|
7002157250000000000♠157.25(3) |
7002157250000000000♠157.25 |
|
2 |
|
|
| 65 |
Tb |
тербий |
7002158925354000000♠158.925354(8) |
7002158930000000000♠158.93 |
|
7002158930000000000♠158.93 |
7002158930000000000♠158.93 |
|
6 |
2017 |
|
| 66 |
Dy |
диспрозий |
7002162500000000000♠162.500(1) |
7002162500000000000♠162.50 |
|
7002162500000000000♠162.50 |
7002162500000000000♠162.50 |
|
3 |
|
|
| 67 |
Ho |
ҳолмий |
7002164930328000000♠164.930328(7) |
7002164930000000000♠164.93 |
|
7002164930000000000♠164.93 |
7002164930000000000♠164.93 |
|
6 |
2017 |
|
| 68 |
Er |
эрбий |
7002167259000000000♠167.259(3) |
7002167260000000000♠167.26 |
|
7002167260000000000♠167.26 |
7002167260000000000♠167.26 |
|
3 |
|
|
| 69 |
Tm |
тулий |
7002168934218000000♠168.934218(6) |
7002168930000000000♠168.93 |
|
7002168930000000000♠168.93 |
7002168930000000000♠168.93 |
|
6 |
2017 |
|
| 70 |
Yb |
иттербий |
7002173045000000000♠173.045(10) |
7002173050000000000♠173.05 |
|
7002173050000000000♠173.05 |
7002173050000000000♠173.05 |
|
3 |
2015 |
|
| 71 |
Lu |
лютесий |
7002174966800000000♠174.9668(1) |
7002174970000000000♠174.97 |
|
7002174970000000000♠174.97 |
7002174970000000000♠174.97 |
|
4 |
|
|
| 72 |
Hf |
ҳафний |
7002178490000000000♠178.49(2) |
7002178490000000000♠178.49(2) |
|
7002178490000000000♠178.49(2) |
7002178490000000000♠178.49 |
|
2 |
|
|
| 73 |
Ta |
тантал |
7002180947880000000♠180.94788(2) |
7002180950000000000♠180.95 |
|
7002180950000000000♠180.95 |
7002180950000000000♠180.95 |
|
5 |
|
|
| 74 |
W |
волфрам |
7002183840000000000♠183.84(1) |
7002183840000000000♠183.84 |
|
7002183840000000000♠183.84 |
7002183840000000000♠183.84 |
|
2 |
|
|
| 75 |
Re |
рений |
7002186207000000000♠186.207(1) |
7002186210000000000♠186.21 |
|
7002186210000000000♠186.21 |
7002186210000000000♠186.21 |
|
3 |
|
|
| 76 |
Os |
осмий |
7002190230000000000♠190.23(3) |
7002190230000000000♠190.23(3) |
|
7002190230000000000♠190.23(3) |
7002190230000000000♠190.23 |
|
2 |
|
|
| 77 |
Ir |
иридий |
7002192217000000000♠192.217(2) |
7002192220000000000♠192.22 |
|
7002192220000000000♠192.22 |
7002192220000000000♠192.22 |
|
3 |
2017 |
|
| 78 |
Pt |
платина |
7002195084000000000♠195.084(9) |
7002195080000000000♠195.08 |
|
7002195080000000000♠195.08 |
7002195080000000000♠195.08 |
|
3 |
|
|
| 79 |
Au |
тилло |
7002196966570000000♠196.966570(4) |
7002196970000000000♠196.97 |
|
7002196970000000000♠196.97 |
7002196970000000000♠196.97 |
|
6 |
2017 |
|
| 80 |
Hg |
симоб |
7002200592000000000♠200.592(3) |
7002200590000000000♠200.59 |
|
7002200590000000000♠200.59 |
7002200590000000000♠200.59 |
|
3 |
|
|
| 81 |
Tl |
таллий |
[7002204382000000000♠204.382, 7002204385000000000♠204.385] |
[7002204380000000000♠204.38, 7002204390000000000♠204.39] |
7002204380000000000♠204.38 |
7002204380000000000♠204.38 |
7002204380000000000♠204.38 |
|
2 |
2009 |
|
| 82 |
Pb |
сурб |
7002207200000000000♠207.2(1) |
7002207200000000000♠207.2 |
|
7002207200000000000♠207.2 |
7002207200000000000♠207.2 |
|
1 |
|
|
| 83 |
Bi |
висмут |
7002208980400000000♠208.98040(1) |
7002208980000000000♠208.98 |
|
7002208980000000000♠208.98 |
7002208980000000000♠208.98 |
|
5 |
|
|
| 84 |
Po |
полоний |
- |
|
|
|
|
[209] |
0 |
|
|
| 85 |
At |
астат |
- |
|
|
|
|
[210] |
0 |
|
|
| 86 |
Rn |
радон |
- |
|
|
|
|
[222] |
0 |
|
|
| 87 |
Fr |
франcий |
- |
|
|
|
|
[223] |
0 |
|
|
| 88 |
Ra |
радий |
- |
|
|
|
|
[226] |
0 |
|
|
| 89 |
Ac |
актиний |
- |
|
|
|
|
[227] |
0 |
|
|
| 90 |
Th |
торий |
7002232037700000000♠232.0377(4) |
7002232040000000000♠232.04 |
|
7002232040000000000♠232.04 |
7002232040000000000♠232.04 |
|
4 |
|
|
| 91 |
Pa |
протактиний |
7002231035880000000♠231.03588(1) |
7002231040000000000♠231.04 |
|
7002231040000000000♠231.04 |
7002231040000000000♠231.04 |
|
5 |
2017 |
|
| 92 |
U |
уран |
7002238028910000000♠238.02891(3) |
7002238030000000000♠238.03 |
|
7002238030000000000♠238.03 |
7002238030000000000♠238.03 |
|
5 |
|
|
| 93 |
Np |
нептуний |
- |
|
|
|
|
[237] |
0 |
|
|
| 94 |
Pu |
плутоний |
- |
|
|
|
|
[244] |
0 |
|
|
| 95 |
Am |
америcий |
- |
|
|
|
|
[243] |
0 |
|
|
| 96 |
Cm |
кюрий |
- |
|
|
|
|
[247] |
0 |
|
|
| 97 |
Bk |
берклий |
- |
|
|
|
|
[247] |
0 |
|
|
| 98 |
Cf |
калифорний |
- |
|
|
|
|
[251] |
0 |
|
|
| 99 |
Es |
эйнштейний |
- |
|
|
|
|
[252] |
0 |
|
|
| 100 |
Fm |
фермий |
- |
|
|
|
|
[257] |
0 |
|
|
| 101 |
Md |
менделевий |
- |
|
|
|
|
[258] |
0 |
|
|
| 102 |
No |
нобелий |
- |
|
|
|
|
[259] |
0 |
|
|
| 103 |
Lr |
лоуренсий |
- |
|
|
|
|
[266] |
0 |
|
|
| 104 |
Rf |
резерфордий |
- |
|
|
|
|
[267] |
0 |
|
|
| 105 |
Db |
дубний |
- |
|
|
|
|
[268] |
0 |
|
|
| 106 |
Sg |
сиборгий |
- |
|
|
|
|
[269] |
0 |
|
|
| 107 |
Bh |
борий |
- |
|
|
|
|
[270] |
0 |
|
|
| 108 |
Hs |
ҳассий |
- |
|
|
|
|
[269] |
0 |
|
|
| 109 |
Mt |
мейтнерий |
- |
|
|
|
|
[278] |
0 |
|
|
| 110 |
Ds |
дармштадтий |
- |
|
|
|
|
[281] |
0 |
|
|
| 111 |
Rg |
рентгений |
- |
|
|
|
|
[282] |
0 |
|
|
| 112 |
Cn |
коперниcий |
- |
|
|
|
|
[285] |
0 |
|
|
| 113 |
Nh |
ниҳоний |
- |
|
|
|
|
[286] |
0 |
|
|
| 114 |
Fl |
флеровий |
- |
|
|
|
|
[289] |
0 |
|
|
| 115 |
Mc |
московиум |
- |
|
|
|
|
[290] |
0 |
|
|
| 116 |
Lv |
ливерморий |
- |
|
|
|
|
[293] |
0 |
|
|
| 117 |
Ts |
теннесин |
- |
|
|
|
|
[294] |
0 |
|
|
| 118 |
Og |
оганессон |
- |
|
|
|
|
[294] |
0 |
|
|
| 119 |
Uue |
унуненний |
- |
|
|
|
|
[315] (predicted) |
0 |
|
|
| 120 |
Ubn |
унбинилий |
- |
|
|
|
|
[299] (unconfirmed) |
0 |
|
|
| 121 |
Ubu |
унбиуний |
- |
|
|
|
|
[320] (predicted) |
0 |
|
|
| 122 |
Ubb |
унбибий |
- |
|
|
|
|
|
|
|
|
| 124 |
Ubq |
унбиквадий |
- |
|
|
|
|
|
|
|
|
| 126 |
Ubh |
унбигексий |
- |
|
|
|
|
|
|
|
|