lUPAC Periodic Table of the Elements
1 H hydrogen 1,008 [1.0076, 1.0032]	2		Key:										13             14             15              16 17					2 He helium 4.0026
3 Li lithium 6.94 [6 938. 6.997]	4 Be beryllium 9.0122		atomic number Symbol name coivoitnnal ata™ weight standard atomic weight			6               7               8               9              10             11 12							5 B boron (0.8-1 [10606. 10.621]	6 c carbon 12.011 [12009. 12.012]	7 N nitrogen H.0&7 [14.006.14.006]	8 O oxygen 15.993 [15999. 16.000]	9 F fluorine 13.998	10 Ne neon 20.130
11 Na sodium 22.990	12 Mg magnesium 24 JOE [24.304. 24.307]	3               4 5											13 Al aluminium 26.962	14 Si silicon 24066 [28.084. 23036]	15 p phosphorus 30.974	16 s sulfur 32.06 [32.059. 32.076]	17 CI chlorine 35.45 [35446. 35.457]	18 Ar argon 39.943
19 K potassium 39.098	20 Ca calcium 40.073(4)	21 Sc scandium 44 956	22 Ti titanium 47 367	23 V vanadium 50.942		24 Cr chromium 51 996	25 Mn manganese 54.936	26 Fe iron 55.345(2)	27 Co cobalt 58.933	28 Ni nickel 56.693	29 Cu copper 63.546(3)	30 Zn zinc 65.36(2)	31 Ga gallium 69 723	32 Ge germanium 72.630(6)	33 As arsenic 74.922	34 Se selenium 73.971(3)	35 Br bromine 79.904 [79 901.79.907]	36 Kr krypton 33.793(2)
37 Rb rubidium 35.466	38 Sr strontium 67.62	39 Y yttrium 33.906	40 Zr zirconium 91.224(2)	41 Nb niobium 92.906		42 Mo molybdenum 96.95	43 Tc technetium	44 Ru ruthenium 101.07(2)	45 Rh rhodium 102.91	46 Pd pal lad iu m 106.42	47 Ag silver 107.87	48 Cd cadmium 112.41	49 In indium 114.62	50 Sn tin 113.71	51 Sb antimony 121.76	52 Te tellurium 127.60(3)	53 I iodine 126.90	54 Xe xenon 131.29
55 Cs caesium 132.91	56 Ba barium 137 33	57-71 lanthanoids	72 Hf hafnium 173.49(2)	73 Ta tantalum 16095		74 w tungsten 183.84	75 Re rhenium 136.21	76 Os osmium 190.23<3)	77 lr iridium 192 22	78 Pt platinum 1950S	79 Au gold 196.97	80 Hg mercury 200.59	81 TI thallium 204 38 [204.33, 204 39]	82 Pb lead 207.2	83 Bi bismuth 206.96	84 Po polonium	85 At astatine	86 Rn radon
87 Fr francium	88 Ra radium	89-103 actinoids	104 Rf rutherfordium	105 Db dubnium		106 sg seaborgium	107 Bh bohrium	108 Hs hassium	109 Mt meitnerium	110 Ds darmstadtium	111 Rg roentgenium	112 Cn copernicium	113 Nh nihonium	114 Fl tlerovium	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 d°y dysprosium	67 Ho hoi 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	166.93	173.05	174.97
89 Ac actinium	90 Th thorium 232.04	91 Pa protactinium 231.04	92 u uranium 238.03	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 nobelium	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.