The Elements - Periodic Table

Lanthanide Series*

58

Ce

140.1

59

Pr

140.9

60

Nd

144.2

61

Pm

(147)

62

Sm

150.4

63

Eu

152.0

64

Gd

157.3

65

Tb

158.9

66

Dy

162.5

67

Ho

164.9

68

Er

167.3

69

Tm

168.9

70

Yb

173.0

71

Lu

175.0

Actinide Series~

90

Th

232.0

91

Pa

(231)

92

U

(238)

93

Np

(237)

94

Pu

(242)

95

Am

(243)

96

Cm

(247)

97

Bk

(247)

98

Cf

(249)

99

Es

(254)

100

Fm

(253)

101

Md

(256)

102

No

(254)

103

Lr

(257)

** Groups are noted by 3 notation conventions.

For a list of a the element names and symbols in alphabetical order, click here

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What is the Periodic Table?

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Chemistry in a Nutshell

Naming New Elements

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A Periodic Table of the Elements at Los Alamos National Laboratory

http://pearl1.lanl.gov/periodic/ (2 of 2) [5/10/2001 3:08:31 PM]