| 
                    1 H 氢 1.0079  | 
                
                    2 He 氦 4.003  | 
            ||||||||||||||||
| 
                    3 Li 锂 6.941  | 
                
                    4 Be 铍 9.012  | 
                
                    5 B 硼 10.811  | 
                
                    6 C 碳 12.011  | 
                
                    7 N 氮 14.007  | 
                
                    8 O 氧 15.999  | 
                
                    9 F 氟 18.998  | 
                
                    10 Ne 氖 20.180  | 
            ||||||||||
| 
                    11 Na 钠 22.990  | 
                
                    12 Mg 镁 24.305  | 
                
                    13 Al 铝 26.982  | 
                
                    14 Si 硅 28.086  | 
                
                    15 P 磷 30.974  | 
                
                    16 S 硫 32.066  | 
                
                    17 Cl 氯 35.453  | 
                
                    18 Ar 氩 39.948  | 
            ||||||||||
| 
                    19 K 钾 39.098  | 
                
                    20 Ca 钙 40.08  | 
                
                    21 Sc 钪 44.956  | 
                
                    22 Ti 钛 47.88  | 
                
                    23 V 钒 50.942  | 
                
                    24 Cr 铬 51.996  | 
                
                    25 Mn 锰 54.938  | 
                
                    26 Fe 铁 55.847  | 
                
                    27 Co 钴 58.933  | 
                
                    28 Ni 镍 58.69  | 
                
                    29 Cu 铜 63.546  | 
                
                    30 Zn 锌 65.39  | 
                
                    31 Ga 镓 69.723  | 
                
                    32 Ge 锗 72.61  | 
                
                    33 As 砷 74.922  | 
                
                    34 Se 硒 78.96  | 
                
                    35 Br 溴 79.904  | 
                
                    36 Kr 氪 83.80  | 
            
| 
                    37 Rb 铷 85.47  | 
                
                    38 Sr 锶 87.62  | 
                
                    39 Y 钇 88.906  | 
                
                    40 Zr 锆 91.224  | 
                
                    41 Nb 铌 92.906  | 
                
                    42 Mo 钼 95.95  | 
                
                    43 Tc 锝 (98)  | 
                
                    44 Ru 钌 101.07  | 
                
                    45 Rh 铑 102.91  | 
                
                    46 Pd 钯 106.42  | 
                
                    47 Ag 银 107.87  | 
                
                    48 Cd 镉 112.41  | 
                
                    49 In 铟 114.82  | 
                
                    50 Sn 锡 118.17  | 
                
                    51 Sb 锑 121.75  | 
                
                    52 Te 碲 127.60  | 
                
                    53 I 碘 126.90  | 
                
                    54 Xe 氙 131.29  | 
            
| 
                    55 Cs 铯 132.90  | 
                
                    56 Ba 钡 137.33  | 
                
                    57-71 镧系  | 
                
                    72 Hf 铪 178.49  | 
                
                    73 Ta 钽 180.95  | 
                
                    74 W 钨 183.85  | 
                
                    75 Re 铼 186.21  | 
                
                    76 Os 锇 190.2  | 
                
                    77 Ir 铱 192.22  | 
                
                    78 Pt 铂 195.08  | 
                
                    79 Au 金 196.97  | 
                
                    80 Hg 汞 200.59  | 
                
                    81 Tl 铊 204.38  | 
                
                    82 Pb 铅 207.2  | 
                
                    83 Bi 铋 208.98  | 
                
                    84 Po 钋 (209)  | 
                
                    85 At 砹 (210)  | 
                
                    86 Rn 氡 (222)  | 
            
| 
                    87 Fr 钫 (223)  | 
                
                    88 Ra 镭 (226)  | 
                
                    89-103 锕系  | 
                
                    104 Rf 𬬻 (265)  | 
                
                    105 Db 𬭊 (268)  | 
                
                    106 Sg 𬭳 (271)  | 
                
                    107 Bh 𬭛 (270)  | 
                
                    108 Hs 𬭶 (277)  | 
                
                    109 Mt 鿏 (276)  | 
                
                    110 Ds 𫟼 (281)  | 
                
                    111 Rg 𬬭 (280)  | 
                
                    112 Cn 鎶 (285)  | 
                
                    113 Nh 鉨 (284)  | 
                
                    114 Fl 鈇 (289)  | 
                
                    115 Mc 镆 (288)  | 
                
                    116 Lv 鉝 (293)  | 
                
                    117 Ts 石田 (294)  | 
                
                    118 Og 气奥 (294)  | 
            
| 镧系 | 
                    57 La 镧 138.91  | 
                
                    58 Ce 铈 140.12  | 
                
                    59 Pr 镨 140.91  | 
                
                    60 Nd 钕 144.24  | 
                
                    61 Pm 钷 (145)  | 
                
                    62 Sm 钐 150.36  | 
                
                    63 Eu 铕 151.96  | 
                
                    64 Gd 钆 157.25  | 
                
                    65 Tb 铽 158.92  | 
                
                    66 Dy 镝 162.50  | 
                
                    67 Ho 钬 164.93  | 
                
                    68 Er 铒 167.26  | 
                
                    69 Tm 铥 168.93  | 
                
                    70 Yb 镱 173.04  | 
                
                    71 Lu 镥 174.97  | 
                ||
| 锕系 | 
                    89 Ac 锕 (227)  | 
                
                    90 Th 钍 232.04  | 
                
                    91 Pa 镤 231  | 
                
                    92 U 铀 238.03  | 
                
                    93 Np 镎 (237)  | 
                
                    94 Pu 钚 (244)  | 
                
                    95 Am 镅 (243)  | 
                
                    96 Cm 锔 (247)  | 
                
                    97 Bk 锫 (247)  | 
                
                    98 Cf 锎 (251)  | 
                
                    99 Es 锿 (252)  | 
                
                    100 Fm 镄 (257)  | 
                
                    101 Md 钔 (258)  | 
                
                    102 No 锘 (259)  | 
                
                    103 Lr 铹 (262)  | 
                ||