1HHydrogen1.008

2HeHelium4.003

3LiLithium7.000

4BeBeryllium9.012

5BBoron10.81

6CCarbon12.01

7NNitrogen14.01

8OOxygen16.00

9FFluorine19.00

10NeNeon20.18

11NaSodium22.99

12MgMagnesium24.30

13AlAluminum26.98

14SiSilicon28.09

15PPhosphorus30.97

16SSulfur32.07

17ClChlorine35.45

18ArArgon39.90

19KPotassium39.10

20CaCalcium40.08

21ScScandium44.96

22TiTitanium47.87

23VVanadium50.94

24CrChromium52.00

25MnManganese54.94

26FeIron55.84

27CoCobalt58.93

28NiNickel58.69

29CuCopper63.55

30ZnZinc65.40

31GaGallium69.72

32GeGermanium72.63

33AsArsenic74.92

34SeSelenium78.97

35BrBromine79.90

36KrKrypton83.80

37RbRubidium85.47

38SrStrontium87.62

39YYttrium88.91

40ZrZirconium91.22

41NbNiobium92.91

42MoMolybdenum95.95

43TcTechnetium96.91

44RuRuthenium101.10

45RhRhodium102.91

46PdPalladium106.42

47AgSilver107.87

48CdCadmium112.41

49InIndium114.82

50SnTin118.71

51SbAntimony121.76

52TeTellurium127.60

53IIodine126.90

54XeXenon131.29

55CsCesium132.91

56BaBarium137.33

72HfHafnium178.49

73TaTantalum180.95

74WTungsten183.84

75ReRhenium186.21

76OsOsmium190.20

77IrIridium192.22

78PtPlatinum195.08

79AuGold196.97

80HgMercury200.59

81TlThallium204.38

82PbLead207.00

83BiBismuth208.98

84PoPolonium208.98

85AtAstatine209.99

86RnRadon222.02

87FrFrancium223.02

88RaRadium226.03

104RfRutherfordium267.12

105DbDubnium268.13

106SgSeaborgium269.13

107BhBohrium270.13

108HsHassium269.13

109MtMeitnerium277.15

110DsDarmstadtium282.17

111RgRoentgenium282.17

112CnCopernicium286.18

113NhNihonium286.18

114FlFlerovium290.19

115McMoscovium290.20

116LvLivermorium293.20

117TsTennessine294.21

118OgOganesson295.22

57LaLanthanum138.91

58CeCerium140.12

59PrPraseodymium140.91

60NdNeodymium144.24

61PmPromethium144.91

62SmSamarium150.40

63EuEuropium151.96

64GdGadolinium157.25

65TbTerbium158.93

66DyDysprosium162.50

67HoHolmium164.93

68ErErbium167.26

69TmThulium168.93

70YbYtterbium173.05

71LuLutetium174.97

89AcActinium227.03

90ThThorium232.04

91PaProtactinium231.04

92UUranium238.03

93NpNeptunium237.05

94PuPlutonium244.06

95AmAmericium243.06

96CmCurium247.07

97BkBerkelium247.07

98CfCalifornium251.08

99EsEinsteinium252.08

100FmFermium257.10

101MdMendelevium258.10

102NoNobelium259.10

103LrLawrencium266.12