Template:Infobox element/symbol-to-saw/overview-compare-wikidata

Standard atomic weight (Ar)°(E), with Wikidata values
Z	Sym	Name	Ar° Table 1; col 4, 5	T	Abridged col 7, 8	QID	mass (P2067) (Da=dalton)	delta Δ=en−wd	m.s.i.	Year changed (CIAAW)
1	H	hydrogen	[1.00784, 1.00811]	2	[1.0078, 1.0082]	d:Q556	1.008±0.0002 Da	Δ = −1.008		2009[1]
2	He	helium	4.002602(2)	1	4.0026	d:Q560	4.002602±0.000002 Da	Δ = 0		1983[2]
3	Li	lithium	[6.938, 6.997]	2	[6.938, 6.997]	d:Q568	6.94±0.06 Da	Δ = −6.94		2009[3]
4	Be	beryllium	9.0121831(5)	1	9.0122	d:Q569	9.0121831±0.000005 Da	Δ = 0		2013[4]
5	B	boron	[10.806, 10.821]	2	[10.806, 10.821]	d:Q618	10.81±0.02 Da	Δ = −10.81		2009[5]
6	C	carbon	[12.0096, 12.0116]	2	[12.009, 12.012]	d:Q623	12.011±0.002 Da	Δ = −12.011		2009[6]
7	N	nitrogen	[14.00643, 14.00728]	2	[14.006, 14.008]	d:Q627	14.007±0.001 Da	Δ = −14.007		2009[7]
8	O	oxygen	[15.99903, 15.99977]	2	[15.999, 16.000]	d:Q629	15.999±0.001 Da	Δ = −15.999		2009[8]
9	F	fluorine	18.998403163(6)	1	18.998	d:Q650	18.998403162±0.000000005 Da	Δ = 0		2013[9]
10	Ne	neon	20.1797(6)	1	20.180	d:Q654	20.1797±0.0006 Da	Δ = 0		1985[10]
11	Na	sodium	22.98976928(2)	1	22.990	d:Q658	22.98976928±0.00000002 Da	Δ = 0		2005[11]
12	Mg	magnesium	[24.304, 24.307]	2	[24.304, 24.307]	d:Q660	24.305±0.002 Da	Δ = −24.305		2011[12]
13	Al	aluminium	26.9815384(3)	1	26.982	d:Q663	26.9815384±0.0000003 Da	Δ = 0		2017[13]
14	Si	silicon	[28.084, 28.086]	2	[28.084, 28.086]	d:Q670	28.085±0.001 Da	Δ = −28.085		2009[14]
15	P	phosphorus	30.973761998(5)	1	30.974	d:Q674	30.973761998±0.000000005 Da	Δ = 0		2013[15]
16	S	sulfur	[32.059, 32.076]	2	[32.059, 32.076]	d:Q682	32.06±0.02 Da	Δ = −32.06		2009[16]
17	Cl	chlorine	[35.446, 35.457]	2	[35.446, 35.457]	d:Q688	35.45±0.01 Da	Δ = −35.45		2009[17]
18	Ar	argon	[39.792, 39.963]	2	[39.792, 39.963]	d:Q696	39.95±0.16 Da	Δ = −39.95		2017[18]
19	K	potassium	39.0983(1)	1	39.098	d:Q703	39.0983±0.0001 Da	Δ = 0		1979[19]
20	Ca	calcium	40.078(4)	1	40.078(4)	d:Q706	40.078±0.004 Da	Δ = 0		1983[20]
21	Sc	scandium	44.955908(5)	1	44.956	d:Q713	44.955907±0.000004 Da	Δ = 1.0×10−6		2013[21]
22	Ti	titanium	47.867(1)	1	47.867	d:Q716	47.867±0.001 Da	Δ = 0		1993[22]
23	V	vanadium	50.9415(1)	1	50.942	d:Q722	50.9415±0.0001 Da	Δ = 0		1977[23]
24	Cr	chromium	51.9961(6)	1	51.996	d:Q725	51.9961±0.0006 Da	Δ = 0		1983[24]
25	Mn	manganese	54.938043(2)	1	54.938	d:Q731	54.938043±0.000002 Da	Δ = 0		2017[25]
26	Fe	iron	55.845(2)	1	55.845(2)	d:Q677	55.845±0.002 Da	Δ = 0		1993[26]
27	Co	cobalt	58.933194(3)	1	58.933	d:Q740	58.933194±0.000003 Da	Δ = 0		2017[27]
28	Ni	nickel	58.6934(4)	1	58.693	d:Q744	58.6934±0.0004 Da	Δ = 0		2007[28]
29	Cu	copper	63.546(3)	1	63.546(3)	d:Q753	63.546±0.003 Da	Δ = 0		1969[29]
30	Zn	zinc	65.38(2)	1	65.38(2)	d:Q758	65.38±0.02 Da	Δ = 0		2007[30]
31	Ga	gallium	69.723(1)	1	69.723	d:Q861	69.723±0.001 Da	Δ = 0		1987[31]
32	Ge	germanium	72.630(8)	1	72.630(8)	d:Q867	72.63±0.008 Da	Δ = 0		2009[32]
33	As	arsenic	74.921595(6)	1	74.922	d:Q871	74.921595±0.000006 Da	Δ = 0		2013[33]
34	Se	selenium	78.971(8)	1	78.971(8)	d:Q876	78.971±0.008 Da	Δ = 0		2013[34]
35	Br	bromine	[79.901, 79.907]	2	[79.901, 79.907]	d:Q879	79.904±0.003 Da	Δ = −79.904		2011[35]
36	Kr	krypton	83.798(2)	1	83.798(2)	d:Q888	83.798±0.002 Da	Δ = 0		2001[36]
37	Rb	rubidium	85.4678(3)	1	85.468	d:Q895	85.4678±0.0003 Da	Δ = 0		1969[37]
38	Sr	strontium	87.62(1)	1	87.62	d:Q938	87.62±0.01 Da	Δ = 0		1969[38]
39	Y	yttrium	88.90584(1)	1	88.906	d:Q941	88.905838±0.000002 Da	Δ = 2.0×10−6		2017[39]
40	Zr	zirconium	91.224(2)	1	91.224(2)	d:Q1038	91.224±0.002 Da	Δ = 0		1983[40]
41	Nb	niobium	92.90637(1)	1	92.906	d:Q1046	92.90637±0.00001 Da	Δ = 0		2017[41]
42	Mo	molybdenum	95.95(1)	1	95.95	d:Q1053	95.95±0.01 Da	Δ = 0		2013[42]
43	Tc	technetium	-	3	-	d:Q1054	97.907 Da	Δ = −97.907	[97]
44	Ru	ruthenium	101.07(2)	1	101.07(2)	d:Q1086	101.07±0.02 Da	Δ = 0		1983[43]
45	Rh	rhodium	102.90549(2)	1	102.91	d:Q1087	102.90549±0.00002 Da	Δ = 0		2017[44]
46	Pd	palladium	106.42(1)	1	106.42	d:Q1089	106.42±0.01 Da	Δ = 0		1979[45]
47	Ag	silver	107.8682(2)	1	107.87	d:Q1090	107.8682±0.0002 Da	Δ = 0		1985[46]
48	Cd	cadmium	112.414(4)	1	112.41	d:Q1091	112.414±0.004 Da	Δ = 0		2013[47]
49	In	indium	114.818(1)	1	114.82	d:Q1094	114.818±0.001 Da	Δ = 0		2011[48]
50	Sn	tin	118.710(7)	1	118.71	d:Q1096	118.71±0.007 Da	Δ = 0		1983[49]
51	Sb	antimony	121.760(1)	1	121.76	d:Q1099	121.76±0.001 Da	Δ = 0		1993[50]
52	Te	tellurium	127.60(3)	1	127.60(3)	d:Q1100	127.6±0.03 Da	Δ = 0		1969[51]
53	I	iodine	126.90447(3)	1	126.90	d:Q1103	126.90447±0.00003 Da	Δ = 0		1985[52]
54	Xe	xenon	131.293(6)	1	131.29	d:Q1106	131.293±0.006 Da	Δ = 0		1999[53]
55	Cs	caesium	132.90545196(6)	1	132.91	d:Q1108	132.90545196±0.00000006 Da	Δ = 0		2013[54]
56	Ba	barium	137.327(7)	1	137.33	d:Q1112	137.327±0.007 Da	Δ = 0		1985[55]
57	La	lanthanum	138.90547(7)	1	138.91	d:Q1801	138.90547±0.00007 Da	Δ = 0		2005[56]
58	Ce	cerium	140.116(1)	1	140.12	d:Q1385	140.116±0.001 Da	Δ = 0		1995[57]
59	Pr	praseodymium	140.90766(1)	1	140.91	d:Q1386	140.90766±0.00001 Da	Δ = 0		2017[58]
60	Nd	neodymium	144.242(3)	1	144.24	d:Q1388	144.242±0.003 Da	Δ = 0		2005[59]
61	Pm	promethium	-	3	-	d:Q1809			[145]
62	Sm	samarium	150.36(2)	1	150.36(2)	d:Q1819	150.36±0.02 Da	Δ = 0		2005[60]
63	Eu	europium	151.964(1)	1	151.96	d:Q1396	151.964±0.001 Da	Δ = 0		1995[61]
64	Gd	gadolinium	157.25(3)	1	157.25(3)	d:Q1832	157.25±0.03 Da	Δ = 0		1969[62]
65	Tb	terbium	158.925354(8)	1	158.93	d:Q1838	158.925354±0.000008 Da	Δ = 0		2017[63]
66	Dy	dysprosium	162.500(1)	1	162.50	d:Q1843	162.5±0.001 Da	Δ = 0		2001[64]
67	Ho	holmium	164.930328(7)	1	164.93	d:Q1846	164.930329±0.000005 Da	Δ = −1.0×10−6		2017[65]
68	Er	erbium	167.259(3)	1	167.26	d:Q1849	167.259±0.003 Da	Δ = 0		1999[66]
69	Tm	thulium	168.934218(6)	1	168.93	d:Q1853	168.934219±0.000005 Da	Δ = −1.0×10−6		2017[67]
70	Yb	ytterbium	173.045(10)	1	173.05	d:Q1855	173.045±0.01 Da	Δ = 0		2015[68]
71	Lu	lutetium	174.9668(1)	1	174.97	d:Q1857	174.9668±0.0001 Da	Δ = 0		2007[69]
72	Hf	hafnium	178.486(6)	1	178.49	d:Q1119	178.486±0.006 Da	Δ = 0		2019[70]
73	Ta	tantalum	180.94788(2)	1	180.95	d:Q1123	180.94788±0.00002 Da	Δ = 0		2005[71]
74	W	tungsten	183.84(1)	1	183.84	d:Q743	183.84±0.01 Da	Δ = 0		1991[72]
75	Re	rhenium	186.207(1)	1	186.21	d:Q737	186.207±0.001 Da	Δ = 0		1973[73]
76	Os	osmium	190.23(3)	1	190.23(3)	d:Q751	190.23±0.03 Da	Δ = 0		1991[74]
77	Ir	iridium	192.217(2)	1	192.22	d:Q877	192.217±0.002 Da	Δ = 0		2017[75]
78	Pt	platinum	195.084(9)	1	195.08	d:Q880	195.084±0.009 Da	Δ = 0		2005[76]
79	Au	gold	196.966570(4)	1	196.97	d:Q897	196.96657±0.0000005 Da	Δ = 0		2017[77]
80	Hg	mercury	200.592(3)	1	200.59	d:Q925	200.592±0.003 Da	Δ = 0		2011[78]
81	Tl	thallium	[204.382, 204.385]	2	[204.38, 204.39]	d:Q932	204.38±0.01 Da	Δ = −204.38		2009[79]
82	Pb	lead	[206.14, 207.94]	1	207.2	d:Q708	207.2±1.1 Da	Δ = −207.2		1969[80]
83	Bi	bismuth	208.98040(1)	1	208.98	d:Q942	208.9804±0.00001 Da	Δ = 0		2005[81]
84	Po	polonium	-	3	-	d:Q979			[209]
85	At	astatine	-	3	-	d:Q999			[210]
86	Rn	radon	-	3	-	d:Q1133			[222]
87	Fr	francium	-	3	-	d:Q671			[223]
88	Ra	radium	-	3	-	d:Q1128			[226]
89	Ac	actinium	-	3	-	d:Q1121	227.028 Da	Δ = −227.028	[227]
90	Th	thorium	232.0377(4)	1	232.04	d:Q1115	232.0377±0.0004 Da	Δ = 0		2013[82]
91	Pa	protactinium	231.03588(1)	1	231.04	d:Q1109	231.03588±0.00001 Da	Δ = 0		2017[83]
92	U	uranium	238.02891(3)	1	238.03	d:Q1098	238.02891±0.00003 Da	Δ = 0		1999[84]
93	Np	neptunium	-	3	-	d:Q1105			[237]
94	Pu	plutonium	-	3	-	d:Q1102			[244]
95	Am	americium	-	3	-	d:Q1872	243 Da	Δ = −243	[243]
96	Cm	curium	-	3	-	d:Q1876	247.07 Da	Δ = −247.07	[247]
97	Bk	berkelium	-	3	-	d:Q1882			[247]
98	Cf	californium	-	3	-	d:Q1888			[251]
99	Es	einsteinium	-	3	-	d:Q1892			[252]
100	Fm	fermium	-	3	-	d:Q1896	257.095 Da	Δ = −257.095	[257]
101	Md	mendelevium	-	3	-	d:Q1898			[258]
102	No	nobelium	-	3	-	d:Q1901			[259]
103	Lr	lawrencium	-	3	-	d:Q1905			[266]
104	Rf	rutherfordium	-	3	-	d:Q1226			[267]
105	Db	dubnium	-	3	-	d:Q1232			[268]
106	Sg	seaborgium	-	3	-	d:Q1234			[269]
107	Bh	bohrium	-	3	-	d:Q1249			[270]
108	Hs	hassium	-	3	-	d:Q1252			[269]
109	Mt	meitnerium	-	3	-	d:Q1258			[278]
110	Ds	darmstadtium	-	3	-	d:Q1266			[281]
111	Rg	roentgenium	-	3	-	d:Q1272			[282]
112	Cn	copernicium	-	3	-	d:Q1278			[285]
113	Nh	nihonium	-	3	-	d:Q1301			[286]
114	Fl	flerovium	-	3	-	d:Q1302	289.191 Da	Δ = −289.191	[289]
115	Mc	moscovium	-	3	-	d:Q1303			[290]
116	Lv	livermorium	-	3	-	d:Q1304			[293]
117	Ts	tennessine	-	3	-	d:Q1306			[294]
118	Og	oganesson	-	3	-	d:Q1307			[294]
119	Uue	ununennium	-		-	d:Q1139				[85]
120	Ubn	unbinilium	-		-	d:Q1146				[86]
121	Ubu	unbiunium	-		-	d:Q1466				[87]
122	Ubb	unbibium	-		-	d:Q7425				[88]
123	Ubt	unbitrium	-		-	d:Q428758				[89]
124	Ubq	unbiquadium	-		-	d:Q428741				[90]
125	Ubp	unbipentium	-		-	d:Q428685				[91]
126	Ubh	unbihexium	-		-	d:Q54377				[92]

Template documentation[view] [edit] [history] [purge]

Overview: formal values of the standard atomic weight
Element (E) ​		Ar, standard(E) Table 1	Value type ​	Ar, std abridged(E) Table 2	Ar, std conventional(E) Table 3	Ar, std formal short(E) Tables 2 and 3	Mass number [most stable isotope]
hydrogen	1H	[1.00784, 1.00811]	interval	[1.0078, 1.0082]	1.008	1.008
nitrogen	7N	[14.00643, 14.00728]	interval	[14.006, 14.008]	14.007	14.007
fluorine	9F	18.998403163(6)	number ± uncertainty	18.998		18.998
calcium	20Ca	40.078(4)	number ± uncertainty	40.078(4)		40.078(4)
technetium	43Tc	(none)	most stable isotope				[97]

Subtemplates used

• {{Infobox element/symbol-to-saw/overview-compare-wikidata}}
• {{Infobox element/symbol-to-saw/overview-compare-wikidata/row}}
• {{Infobox element/symbol-to-saw/overview-compare-wikidata/wd-set}}
• {{Infobox element/symbol-to-saw/overview-compare-wikidata/row/delta-en-wd}}
• {{Infobox element/symbol-to-saw/overview-compare-wikidata/to-plain-number}}

Sources (CIAAW publications)

  (This list: )

CIAAW may publish changes to atomic weights (including its precision and derived values). Since 1947, any update this is done in odd years nominally; the actual date of publication may be some time later.

• 2009 {{CIAAW2009}} (introducing interval notation; Ge):

"Atomic weights of the elements 2009 (IUPAC Technical Report)". Pure Appl. Chem. 83 (2): 359–396. 12 December 2010. doi:10.1351/PAC-REP-10-09-14.

• 2011 {{CIAAW2011}} (interval for Br, Mg):

"Atomic weights of the elements 2011 (IUPAC Technical Report)". Pure Appl. Chem. 85 (5): 1047–1078. 29 April 2013. doi:10.1351/PAC-REP-13-03-02.

• 2013 {{CIAAW2013}} (all elements listed):

Meija, Juris; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. 88 (3): 265–91. doi:10.1515/pac-2015-0305.

• 2015 {{CIAAW2015}} (ytterbium changed):

"Standard Atomic Weight of Ytterbium Revised". Chemistry International. 37 (5–6): 26. October 2015. doi:10.1515/ci-2015-0512. eISSN 0193-6484. ISSN 0193-6484.

• 2017 {{CIAAW2017}} (14 values changed):

"Standard atomic weights of 14 chemical elements revised". CIAAW. 2018-06-05.

• 2019 (hafnium value changed): Meija, Juris; et al. (2019-12-09). "Standard atomic weight of hafnium revised". CIAAW. Retrieved 2020-02-25.
• 2020* (lead value changed): Zhu, Xiang-Kun; Benefield, Jacqueline; Coplen, Tyler B.; Gao, Zhaofu; Holden, Norman E. (1 October 2020). "Variation of lead isotopic composition and atomic weight in terrestrial materials (IUPAC Technical Report)". doi:10.1515/pac-2018-0916.

* "2020" is an inconsistent year for change publication: CIAAW maintains that only odd years, changes are publicised.

• 2021 {{CIAAW2021}} (all elements listed); (4 values changed; introduced new symbol; merge "conventional" into "abridged" columns; change uncertainty notation (use "±")

Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.

Uncertainty handling

About notation and handling of the uncertainty in the values, including those in [ ] range values:

• Possolo, Antonio; van der Veen, Adriaan M.H.; Meija, Juris; et al. (4 Jan 2018). "Interpreting and propagating the uncertainty of the standard atomic weights (IUPAC Technical Report)". doi:10.1515/pac-2016-0402. Retrieved 20 Oct 2020.
• {{CIAAW2021}}: changing notation (i.e., interpretation, not the value) from 123.45(2) into 123.45±0.02

Outdated references
{{NUBASE 1997}} — Audi {{NUBASE 2003}} — Audi (used in the 2008 enwiki "Isotopes of <element>" Big Tables) {{NUBASE 2012}} {{CIAAW2003}} — De Laeter {{CIAAW 2005}} — Wieser {{CRC85}} ({{CRC85|chapter=11}}) &mdsh; Holden "Universal Nuclide Chart". nucleonica. -- broken/bad access

See also: {{Isotopes table/references}}

See also

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