Periodic Table of the Elements

Periodic Table of the Elements

1A

1

H

1.00794

Hydrogen

2A

3

4

Li Be

6.941

9.012182

Lithium

Beryllium

11

12

Na Mg

22.989769 24.3050 Sodium Magnesium

3B

4B

19

20

21

22

K Ca Sc Ti

39.0983

40.078 44.955912 47.867

Potassium Calcium Scandium Titanium

37

38

39

40

Rb Sr Y Zr

85.4678

87.62

88.90585

91.224

Rubidium

55

Strontium

56

Yttrium

57-71

Zirconium

72

Cs Ba

Hf

132.9054519 137.327

178.49

Cesium

87

Fr

Barium

88

Ra

Lanthanides

89-103

Hafnium

104

Rf

[223]

[226]

[267]

Francium

Radium

Actinides Rutherfordium

5B

23

V

50.9415

Vanadium

41

Nb

92.90638

Niobium

73

Ta

180.94788

Tantalum

105

Db

[268]

Dubnium

6B

24

Cr

51.9961

Chromium

42

Mo

95.96

Molybdenum

74

W

183.84

Tungsten

106

Sg

[271]

Seaborgium

7B

25

Mn

54.938045

Manganese

43

Tc

[98]

Technetium

75

Re

186.207

Rhenium

107

Bh

[272]

Bohrium

8B

26

27

28

Fe Co Ni

55.845 58.933195 58.6934

Iron

Cobalt

Nickel

44

45

46

Ru Rh Pd

101.07 102.90550 106.42

Ruthenium Rhodium Palladium

76

77

78

Os Ir Pt

190.23

192.217

195.084

Osmium

Iridium

Platinum

108

109

110

Hs Mt Ds

[270]

[276]

[281]

Hassium Meitnerium Darmstadtium

?2012 Todd Helmenstine About Chemistry

3A

5

B

10.811

Boron

13

Al

26.9815386

1B

2B

Aluminum

29

30

31

Cu Zn Ga

63.546

65.38

69.723

Copper

Zinc

Gallium

47

48

49

Ag Cd In

107.8682 112.411

114.818

Silver

Cadmium

Indium

79

80

81

Au Hg Tl

196.966569 200.59

204.3833

Gold

Mercury

Thallium

111

112

113

Rg Cn Uut

[280]

[285]

[284]

Roentgenium Copernicium Ununtrium

4A

6

C

12.0107

Carbon

14

Si

28.0855

Silicon

32

Ge

72.64

Germanium

50

Sn

118.710

Tin

82

Pb

207.2

Lead

114

Fl

[289]

Flerovium

5A

7

N

14.0067

Nitrogen

15

P

30.973762

Phosphorus

33

As

74.92160

Arsenic

51

Sb

121.760

Antimony

83

Bi

208.98040

Bismuth

115

Uup

[288]

Ununpentium

6A

8

O

15.9994

Oxygen

16

S

32.065

Sulfur

34

Se

78.96

Selenium

52

Te

127.60

Tellurium

84

Po

[209]

Polonium

116

Lv

[293]

Livermorium

7A

9

F

18.9984032

Fluorine

17

Cl

35.453

Chlorine

35

Br

79.904

Bromine

53

I

126.90447

Iodine

85

At

[210]

Astatine

117

Uus

[294]

Ununseptium

8A

2

He

4.002602

Helium

10

Ne

20.1797

Neon

18

Ar

39.948

Argon

36

Kr

83.798

Krypton

54

Xe

131.293

Xenon

86

Rn

[222]

Radon

118

Uuo

[294]

Ununoctium

Lanthanides Actinides

57

La

138.90547 Lanthanum

89

Ac

[227] Actinium

58

Ce

140.116 Cerium

90

Th

232.03806 Thorium

59

60

Pr Nd

140.90765 144.242

Praseodymium Neodymium

91

92

Pa U

231.03588 238.02891

Protactinium Uranium

61

Pm

[145] Promethium

93

Np

[237] Neptunium

62

Sm

150.36 Samarium

94

Pu

[244] Plutonium

63

Eu

151.964 Europium

95

Am

[243] Americium

64

Gd

157.25 Gadolinium

96

Cm

[247] Curium

65

Tb

158.92535 Terbium

97

Bk

[247] Berkelium

66

Dy

162.500 Dysprosium

98

Cf

[251] Californium

67

Ho

164.93032 Holmium

99

Es

[252] Einsteinium

68

Er

167.259 Erbium

100

Fm

[257] Fermium

69

Tm

168.93421 Thulium

101

Md

[258]

Mendelevium

70

Yb

173.054 Ytterbium

102

No

[259] Nobelium

71

Lu

174.9668 Lutetium

103

Lr

[262] Lawrencium

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