Ac89

(227)Actinium

Th90

232.0381Thorium

Pa91

231.03588Protactinium

U92

238.0289Uranium

Es99

(252)Einsteinium

Fm100

(257)Fermium

Md101

(258)Mendelevium

No102

(259)Nobelium

Lr103

(262)Lawrencium

Pu94

(244)Plutonium

Np93

(237)Neptunium

Am95

(243)Americium

Cm96

(247)Curium

Bk97

(247)Berkelium

Cf98

(251)Californium

Actinoids

Actinoids

La57

138.9055LanthanumCe

58

140.116Cerium

Pr59

140.90765Praseodymium

Nd60

144.24Neodymium

Pm61

(145)Promethium

Sm62

150.36Samarium

Eu63

151.964Europium

Gd64

157.25Gadolinium

Tb65

158.92534Terbium

Dy66

162.50Dysprosium

Ho67

164.93032Holmium

Er68

167.26Erbium

Tm69

168.93421Thulium

Yb70

173.04Ytterbium

Lu71

174.967Lutetium

Lanthanoids

Lanthanoids

Hs108

(265)Hassium

Rf104

(261)Rutherfordium

Db105

(262)Dubnium

Bh107

(264)Bohrium

Sg106

(263)Seaborgium

113

Mt109

(268)Meitnerium

Lv116

(292)Livermorium

Ds110

(269)Darmstadtium

Fl114

(289)Flerovium

Rg111

(272)Roentgenium

Ra88

226.025Radium

Fr87

(223)Francium

Cn112

(285)Copernicium

Nh(278)

Nihonium

115

Mc(288)

Moscovium

117

Ts(293)

Tennessine

118

Og(293)

Oganesson

Tl81

204.3833Thallium

Rn86

(222)Radon

Pb82

207.2Lead

Bi83

208.98038Bismuth

Po84

(209)Polonium

At85

(210)Astatine

Au79

196.96655Gold

Hg80

200.59MercuryBa

56

137.327Barium

Re75

186.207Rhenium

Os76

190.23Osmium

Pt78

195.078Platinum

Ir77

192.217Iridium

W74

183.84Tungsten

Ta73

180.9479TantalumHf

72

178.49Hafnium

Cs55

132.90545Cesium

In49

114.818Indium

Xe54

131.29Xenon

Sn50

118.710Tin

Sb51

121.760AntimonyTe

52

127.60Tellurium

I53

126.90447Iodine

Ag47

107.8682Silver

Cd48

112.411Cadmium

Sr38

87.62Strontium

Tc43

(98)Technetium

Ru44

101.07Ruthenium

Pd46

106.42Palladium

Rh45

102.90550Rhodium

Mo42

95.94Molybdenum

Nb41

92.90638Niobium

Zr40

91.224ZirconiumY39

88.90585Yttrium

Rb37

85.4678Rubidium

Ga31

69.723Gallium

Kr36

83.80KryptonGe

32

72.61Germanium

As33

74.92160Arsenic

Se34

78.96Selenium

Br35

79.904Bromine

Cu29

63.546Copper

Zn30

65.39Zinc

Ca20

40.078Calcium

Mn25

54.938049Manganese

Fe26

55.845Iron

Ni28

58.6934Nickel

Co27

58.933200Cobalt

Cr24

51.9961Chromium

V23

50.9415Vanadium

Ti22

47.867Titanium

Sc21

44.955910Scandium

K19

39.0983Potassium

Be4

9.012182Beryllium

Ne10

20.1797Neon

He2

4.002602Helium

H1

1.00794Hydrogen

C6

12.0107Carbon

N7

14.00674Nitrogen

O8

15.9994Oxygen

B5

10.811Boron

Al13

26.981538Aluminum

F9

18.9984032Fluorine

Ar18

39.948Argon

Si14

28.0855Silicon

P15

30.973762Phosphorus

S16

32.066Sulfur

Cl17

35.4527Chlorine

Li3

6.941Lithium

Mg12

24.3050Magnesium

Na11

22.989770Sodium

Periodic Table of the Elements1

2

4 5 6 7 10 118 9 12

13 14 15 16 17

18

3

Group numbering is based on the new IUPAC system.Atomic weights are based on C = 12 and conform to the 1995 IUPAC reported values. Number in ( ) indicates the isotope of longest half-life.

Illustrated by Masahiko Suenaga http://zzzfelis.sakura.ne.jp

12