icon

1

H

Hydrogen

1.0078

2

He

Helium

4.0026

3

Li

Lithium

6.9410

4

Be

Beryllium

9.0122

5

B

Boron

10.0811

6

C

Carbon

12.011

7

N

Nitrogen

14.007

8

O

Oxygen

15.999

9

F

Fluorine

18.998

10

Ne

Neon

20.180

11

So

Sodium

22.990

12

Mg

Magnesium

24.305

13

Al

Aluminium

26.982

14

Si

Silicon

28.086

15

P

Phosphorus

30.974

16

S

Sulfur

32.065

17

Cl

Chlorine

35.453

18

Ar

Argon

39.948

19

K

Potassium

85.468

20

Ca

Calcium

40.078

21

Sc

Scandium

44.956

22

Ti

Titanium

47.867

23

V

Vanadium

50.942

24

Cr

Chromium

51.996

25

Mn

Manganese

54.938

26

Fe

Iron

55.845

27

Co

Cobalt

58.933

28

Ni

Nickel

58.693

29

Cu

Copper

63.546

30

Zn

Zinc

65.380

31

Ga

Gallium

69.723

32

Ge

Germanium

72.640

33

As

Arsenic

74.922

34

Se

Scandium

78.960

35

Br

Bromine

79.904

36

Kr

Krypton

83.798

37

Rb

Rubidium

85.468

38

Sr

Strontium

87.620

39

Y

Yttrium

88.906

40

Zr

Zirconium

178.49

41

Nb

Niobium

92.906

42

Mo

Molybdenum

95.950

43

TC

Technetium

98

44

Ru

Ruthenium

101.07

45

Rh

Rhodium

102.91

46

Pd

Palladium

106.42

47

Ag

Silver

107.87

48

Cd

Cadmium

112.41

49

In

Indium

114.82

50

Sn

Tin

118.71

51

Sb

Antimony

121.76

52

Te

Tellurium

127.60

53

I

Iodine

126.90

54

Xe

Xenon

131.29

55

Cs

Caesium

132.91

56

Ba

Barium

137.33

57

La

Lanthanum

138.91

58

Ce

Cerium

44.956

59

Pr

Praseodymium

140.91

60

Nd

Neodymium

144.24

61

Pm

Promethium

145

62

Sm

Samarium

150.36

63

Eu

Europium

151.96

64

Gd

Gadolinium

157.25

65

Tb

Terbium

158.93

66

Dy

Dysprosium

162.5

67

Ho

Scandium

44.956

68

Er

Erbium

167.26

69

Tm

Thulium

168.93

70

Yb

Ytterbium

173.04

71

Lu

Lutetium

174.97

72

Hf

Hafnium

178.49

73

Ta

Tantalum

180.95

74

W

Tungsten

183.84

75

Re

Rhenium

186.21

76

Os

Osmium

190.23

77

Ir

Iridium

192.22

78

Pt

Platinum

195.08

79

Au

Gold

196.97

80

Hg

Mercury

200.59

81

Th

Thallium

204.38

82

Pb

Lead

44.956

83

Bi

Bismuth

208.98

84

Po

Polonium

209

85

At

Astatine

210

86

Rn

Radon

222

87

Fr

Francium

223

88

Ra

Radium

226

89

Ac

Actinium

227

90

Th

Thorium

232.04

91

Pa

Protactinium

231.04

92

U

Uranium

238.03

93

Np

Neptunium

237.05

94

Pu

Plutonium

244

95

Am

Americium

243

96

Cm

Curium

247

97

Bk

Berkelium

247

98

Cf

Californium

251

99

Es

Einsteinium

252

100

Fm

Fermium

257

101

Md

Mendelevium

258

102

No

Nobelium

259

103

Lr

Lawrencium

262

104

Rf

Rutherfordium

44.956

105

Db

Dubnium

262

106

Sg

Seaborgium

107

Bh

Bohrium

264

108

Hs

Hassium

269

109

Mt

Meitnerium

44.956

110

Ds

Darmstadtium

44.956

111

Rg

Roentgenium

282

112

Cn

Copernicium

44.956

113

Nh

Nihonium

286

114

Fl

Flerovium

289

115

Mc

Moscovium

289

116

Lv

Livermorium

293

117

Ts

Tennessine

118

Og

Oganesson

294