IA

1

VIIIA

18

1

1

H

Hydrogen

1.00794

2

He

Helium

4.0026

IIA

2

IIIA

13

IVA

14

VA

15

VIA

16

VIIA

17

2

3

Li

Lithium

6.941

4

Be

Beryllium

9.01218

1

H

Hydrogen

1.00794

5

B

Boron

10.811

6

C

Carbon

12.011

7

N

Nitrogen

14.0067

8

O

Oxygen

15.9994

9

F

Fluorine

18.9984

10

Ne

Neon

20.1797

3

11

Na

Sodium

22.9898

12

Mg

Magnesium

24.305

13

Al

Aluminum

26.9815

14

Si

Silicon

28.0855

15

P

Phosphorus

30.9738

16

S

Sulfur

32.06

17

Cl

Chlorine

35.453

18

Ar

Argon

39.948

3

IVB

4

VB

5

VIB

6

VIIB

7

VIIIB

8

IXB

9

XB

10

XIB

11

XIIB

12

4

19

K

Potassium

39.0983

20

Ca

Calcium

40.078

21

Sc

Scandium

44.956

22

Ti

Titanium

47.867

23

V

Vanadium

50.9415

24

Cr

Chromium

51.9961

25

Mn

Manganese

54.9380

26

Fe

Iron

55.847

27

Co

Cobalt

58.9332

28

Ni

Nickel

58.69

29

Cu

Copper

63.546

30

Zn

Zinc

65.39

31

Ga

Gallium

69.723

32

Ge

Germanium

72.61

33

As

Arsenic

74.9216

34

Se

Selenium

78.96

35

Br

Bromine

79.904

36

Kr

Krypton

83.80

5

37

Rb

Rubidium

85.4678

38

Sr

Strontium

87.62

39

Y

Yttrium

88.9059

40

Zr

Zirconium

91.224

41

Nb

Niobium

92.9064

42

Mo

Molybde-num

95.94

43

Tc

Technetium

(98)

44

Ru

Ruthenium

101.07

45

Rh

Rhodium

102.906

46

Pd

Palladium

106.42

47

Ag

Silver

107.868

48

Cd

Cadmium

112.41

49

In

Indium

114.82

50

Sn

Tin

118.710

51

Sb

Antimony

121.76

52

Te

Tellurium

127.60

53

I

Iodine

126.904

54

Xe

Xenon

131.29

6

55

Cs

Cesium

132.905

56

Ba

Barium

137.33

57

La

Lanthanum

138.906

72

Hf

Hafnium

178.49

73

Ta

Tantalum

180.948

74

W

Tungsten

183.84

75

Re

Rhenium

186.207

76

Os

Osmium

190.2

77

Ir

Iridium

192.22

78

Pt

Platinum

195.08

79

Au

Gold

196.967

80

Hg

Mercury

200.59

81

Tl

Thallium

204.383

82

Pb

Lead

207.2

83

Bi

Bismuth

208.980

84

Po

Polonium

208.982

85

At

Astatine

209.987

86

Rn

Radon

222.02

7

87

Fr

Francium

223.02

88

Ra

Radium

226.025

89

Ac

Actinium

(227)

104

Rf

Rutherfordium

(261)

105

Db

Dubnium

(262)

106

Sg

Seaborgium

(263)

107

Bh

Bohrium

(262)

108

Hs

Hassium

(265)

109

Mt

Meitnerium

(266)

110

Uun

Ununnilium

(269)

111

Uuu

Unununium

(272)

112

Uub

Ununbium

(277)

113

114

Uuq

Ununquadium

(285)

115

116

Uuh

Uhuhexium

(289)

117

118

Uuo

Ununoctium

(293)

Lanthanide Series

58

Ce

Cerium

140.12

59

Pr

Praseodymium

140.908

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

158.925

66

Dy

Dysprosium

162.50

67

Ho

Holmium

164.930

68

Er

Erbium

167.26

69

Tm

Thulium

168.934

70

Yb

Ytterbium

173.04

71

Lu

Lutetium

174.967

Actinide Series

90

Th

Thorium

232.038

91

Pa

Protactinium

231.036

92

U

Uranium

238.029

93

Np

Neptunium

(237)

949

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)