H 1.00800 He 4.00300 Li 6.93900 Be 9.01200 B 10.81100 C 12.01100 N 14.00700 O 15.99900 F 18.99800 Ne 20.18300 Na 22.99000 Mg 24.31200 Al 26.98200 Si 28.08600 P 30.97400 S 32.06400 Cl 35.45300 Ar 39.94800 K 39.10200 Ca 40.08000 Sc 44.95600 Ti 47.90000 V 50.94200 Cr 51.99600 Mn 54.93800 Fe 55.84700 Co 58.93300 Ni 58.71000 Cu 63.54000 Zn 65.37000 Ga 69.72000 Ge 72.59000 As 74.92200 Se 78.96000 Br 79.90900 Kr 83.80000 Rb 85.47000 Sr 87.62000 Y 88.90500 Zr 91.22000 Nb 92.90600 Mo 95.94000 Tc 98.00000 Ru 101.07000 Rh 102.90500 Pd 106.40000 Ag 107.87000 Cd 112.40000 In 114.82000 Sn 118.69000 Sb 121.75000 Te 127.60000 I 126.90400 Xe 131.30000 Cs 132.90500 Ba 137.34000 La 138.91000 Ce 140.12000 Pr 140.90700 Nd 144.24001 Pm 147.00000 Sm 150.35001 Eu 151.96001 Gd 157.25000 Tb 158.92400 Dy 162.50000 Ho 164.92999 Er 167.25999 Tm 168.93401 Yb 173.03999 Lu 174.97000 Hf 178.49001 Ta 180.94800 W 183.85001 Re 186.20000 Os 190.20000 Ir 192.20000 Pt 195.09000 Au 196.96700 Hg 200.59000 Tl 204.37000 Pb 207.19000 Bi 208.98000 Po 210.00000 At 210.00000 Rn 222.00000 Fr 223.00000 Ra 226.00000 Ac 227.00000 Th 232.03799 Pa 231.00000 U 238.03000