1 H氢 1.00794 2 He氦 4.002602 3 Li 锂 6.941 4 Be铍 9.0122 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 20.17 11 Na钠 22.9898 12 Mg镁 24.305 13 Al铝 26.982 14 Si硅 28.085 15 P磷 30.974 16 S硫 32.06 17 Cl氯 35.453 18 Ar氩 39.94 19 K 钾 39.098 20 Ca钙 40.08 21 Sc钪 44.956 22 Ti钛 47.9 23 V钒 50.9415 24 Cr铬 51.996 25 Mn锰 54.938 26 Fe铁 55.84 27 Co钴 58.9332 28 Ni镍 58.69 29 Cu铜 63.54
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