lUPAC Periodic Table of the Elements
1 H hydrogen 1,008 [1.0078, 1.0082]	2		Key;										13	14	15	16	17	2 He helium 4.0026
3 Li lithium 6.94 (3,936,6.997]	4 Be beryllium 9.0122		atomic number Symbol name conventional atonic weight standard atomic weight										5 B boron icai [10.606, 10.621]	6 c carbon 12.011 [12 009. 12.012]	7 N nitrogen H.0&7 [14.006.14.008]	8 o oxyg en 15.993 [15.999, 16.000]	9 F fluorine 18.998	10 Ne neon 20.180
11 Na sodium 22.990	12 Mg magnesium 24 JOE [24 304. 24.307"	3	4		S	6	7	e	9	10	11	12	13 Al aluminium 26 962	14 Si sili con 2a 065 [28.004. 23.0QG"	15 P phosphorus 30.974	16 s sulfur 32.06 [32.059. 32.07G"	17 CI chlorine 35 45 [35 446. 35.457]	18 Ar argon 39.943
19 K potassium	20 Ca calcium	21 Sc scandium	22 Ti titanium	23 V vanadium		24 Cr chromium	25 Mn manganese	26 Fe iron	27 Co oobalt	28 Ni nickel	29 Cu copper	30 Zn zinc	31 Ga gallium	32 Ge germanium	33 As arsenic	34 Se selenium	35 Br bromine	36 Kr krypton
39.096	40.078(4)	44956	47 367	50.942		51 996	54.936	55,345(2)	53.933	56.693	63.546(3)	6536(2)	69 723	72.630(6)	74.922	73.971(8)	[79.901, 79907]	S3 798(2)
37 Rb rubidium	38 Sr strontium	39 Y yttrium	40 Zr zirconium	41 Nb niobium		42 Mo molybdenum	43 Tc technetium	44 Ru ruthenium	45 Rh rhodium	46 Pd pal lad iu m	47 Ag silver	48 Cd cadmium	49 In indium	50 Sn tin	51 Sb antimony	52 Te tellurium	53 I iodine	54 Xe xenon
35.466	S7.62	66.906	91224(2)	92.906		95.95		101.07(2)	J02.9J	'06.42	107.87	112.41	114.82	113.71	121.76	127.60(3)	'2G.90	J3'.29
55 Cs caesium	56 Ba barium	57-71 lanthanoids	72 Hf hafnium	73 Ta tantalum		74 w tungsten	75 Re rhenium	76 Os osmium	77 lr iridium	78 Pt platinum	79 Au gold	80 Hg mercury	81 TI thallium	82 Pb lead	83 Bi bismuth	84 Po polonium	85 At astatine	86 Rn radon
132.91	137 33		176.49(2)	16095		163.64	16621	19023(3)	192 22	19506	136.97	200.59	[204.36, 204 39]	207.2	208.96			
87 Fr francium	88 Ra radium	89-103 acttnords	104 Rf rutherfordium	105 Db dubnium		106 2« seaborgium	107 Bh bohrium	108 Hs hassium	109 Mt meitnerium	110 Ds darmstadtium	111 Rg roentgenium	112 Cn copernicium	113 Nh nihonium	114 Fl flerovium	115 Mc moscovium	116 Lv ivermorium	117 Ts tennessine	118 Og oganesson
INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY
57 La lanthanum	58 Ce cerium	59 Pr praseodymium	60 Nd neodymium	61 Pm promethium	62 Sm samarium	63 Eu europium	64 Gd gadolinium	65 Tb terbium	66 dysprosium	67 Ho ho mi urn	68 Er erbium	69 Tm thulium	70 Yb ytterbium	71 Lu lutelium
138.91	140.12	140.91	144.24		150.36(2)	151.96	157.25(3)	153.93	162.50	164.93	167.26	168.93	173.05	174.97
89 Ac actinium	90 Th thorium 232.04	91 Pa protactinium 23".04	92 u uranium 23S.03	93 Np neptunium	94 Pu plutonium	95 Am americium	96 Cm curium	97 Bk berkelium	98 Cf californium	99 Es einsteinium	100 Fm fermium	101 Md mendelevium	102 No rrobelium	103 Lr lawrencium
For notes and updates to this table, see www.iupac.org. This version is dated 28 November 2016. Copyright© 2016 IUPAC, the International Union of Pure and Applied Chemistry.