10 15 5.2.............. ............................................................................ ............1..................3 ...................... ............ .............. .... .... .... .... .......... .............. .... .... .... .... .......... .................. Es 99 .... .. .. .. .. .. .. Tc 43 .... .. .. Zn 30 65.38 .. Fe 26 55.84 7 .. .. .. .. .. .. Ac 89 .... .. .. .. .. .. Tb 65 158.9254 a .. .. .. .. .. At 85 .... .. .. .. Te 52 127.6 0 .. .. .. .. .. .. Am 95 .... .. Cu 29 63.54 6 c, d .. .. .. .. Ar 18 39.94 8 b, c, d, g .. .. .. .. Th 90 232.0381 a, f .. .. .. .. .. .. Al 13 26.98154 a .. .. .. .. .. Na 11 22.98977 a .. .. .. .. .. Sb 51 121.7 5 .. Pb 82 207.2 d, g .. .. .. S 16 32.06 d .. .. .. Nb 41 92.9064 a .. .. .. .. .. .. .. Yb 70 173.0 4 .. .. .. .. Ni 28 58.7 1 .. .. .. .. .. .. Y 39 88.9059 a .. .. .. .. Nd 60 144.2 4 .. .. .. .. .. Ir 77 192.2 2 .. .. .. Ne 10 20.17 9 c .. .. .. .. .. In 49 114.82 .. .. .. .. .. .. Np 93 237.0482 b, f .. .. .. U 92 238.029 b, c, e .. .. .. .. .. .. No 102 .... .. .. .. .. .. Er 68 167.2 6 .. .. .. .. .. .. Bk 97 .... .. .. Cl 17 35.453 c .. .. Pt 78 195.0 9 .. .. .. .. .. Os 76 190.2 .. .. .. .. .. V 23 50.941 4 b, c .. .. .. .. .. Cd 48 112.40 .. .. .. .. .. Hf 72 178.4 9 .. .. .. .. .. .. Gd 64 157.2 5 .. .. .. .. .. Pd 46 106.4 .. .. .. .. K 19 39.09 8 .. .. .. .. Ba 56 137.3 4 .. .. .. .. Ga 31 69.72 .. .. .. .. Bi 83 208.9804 a .. .. .. .. .. .. .. Cf 98 .... .. .. As 33 74.9216 a .. .. .. .. .. Ca 20 40.08 g .. .. .. .. .. .. Fm 100 .... .. .. .. .. Xe 54 131.30 .. .. .. F 9 18.99840 a .. .. .. .. .. Cm 96 .... .. .. .. .. .. .. Pr 59 140.9077 a .. Au 79 196.9665 a .. .. .. .. .. .. Fr 87 .... .. Ag 47 107.868 c .. .. .. .. .. .. Pu 94 .... .. .. .. .. .. Kr 36 83.80 .................. Pa 91 231.0359 a, f .. .. .. Cr 24 51.996 c .. .. .. .. .. .. Pm 61 .... .. .. .. Si 14 28.08 6 d .. .. .. .. He 2 4.00260 b, c .. .. .. .. .. .. Ge 32 72.5 9 .. .. .. .. .. Be 4 9.01218 a .. .. .. .. Co 27 58.9332 a .. .. .. B 5 10.81 c, d, e .. .. .. .. .. Sm 62 150.4 .. .. .. .. .. Ho 67 164.9304 a .. .. O 8 15.999 4 b, c, d .. .. .. .. .. Po 84 .... .. .. .. .. .. .. .. Dy 66 162.5 0 .. .. .. .. .. .. Mg 12 24.305 c, g .. .. Br 35 79.904 c .. .. .. .. Mn 25 54.9380 a .. .. .. .. .. .. Zr 40 91.22 .. .. .. .. .. .. .. Md 101 .... .. .. Hg 80 200.5 9 .. .. .. .. .. Mo 42 95.9 4 .. .. H 1 1.0079 b, d .. .. .. .. .. .. Eu 63 151.96 .. .. .. .. .. .. Sc 21 44.9559 a .. .. .. I 53 126.9045 a .. .. Sn 50 118.6 9 .. .. .. .. Ra 88 226.0254 a, f, g .. .. .. .. .. .. .. Sr 38 87.62 g .. .. .. Rn 86 .... .. .. .. .. Cs 55 132.9054 a .. .. .. .. La 57 138.905 5 b .. .. .. .. Ce 58 140.12 .. .. .. .. Li 3 6.94 1 c, d, e, g .. .. .. Se 34 78.9 0 .. .. P 15 30.97376 a .. .. .. .. Tl 81 204.3 7 .. .. .. .. .. Lu 71 174.97 .. .. .. .. .. .. W 74 183.8 5 .. .. .. .. .. Ru 44 101.0 7 .. .. C 6 12.011 b, d .. .. .. .. .. Rb 37 85.467 8 c .. .. .. .. Ta 73 180.947 9 b .. .. .. .. Re 75 186.2 .. .. .. Ti 22 47.9 0 .. .. .. .. Rh 45 102.9055 a .. .. N 7 14.0067 b, c .. .. .. .. .. .. .. Lr 103 .... .. .. .. .. Tm 69 168.9342 a ......a................b............................ 99...00...................... c................................d............................................ ....................e........................................................ ........f....................................g.................................. .............................................................................. _________________________________________________________________________________________________________ ..........................................IUPAC....................1971............ .......................................... 10