Cerium

Properties
Atomic symbol |  Ce
Atomic number |  58
Classification |  Inner Transistion metal
Atomic mass |  140.1 amu
Other Information
Date of discovery |  1803
Name of discoverer |  W. von Hisinger
Name origin |  From the asteroid Ceres.
Uses |  Cerium can be used to make heat resistant alloys.
Obtained from |  monazite.

Cerium (SER-ee-em) was discovered by Jöns Jacob Berzelius and Wilhelm von Hisinger, Swedish chemists, and also independently by the German chemist Martin Heinrich Klaproth, in 1803. It is one of the rare earth elements. Cerium is considered to be moderately toxic.[1] Cerium is a reactive, soft, gray, lustrous metal that is malleable and ductile.[2] It is also somewhat flammable.[3]

## Uses[edit]

Cerium is used for a number of things, including carbon arc lights (used in the movie industry, and other places),[4] the walls of self-cleaning ovens, and even lighter flints.[5] Cerium oxide and other Cerium compounds are also used for glass treatment.

Periodic Table of the Elements

1  | 2  | 3  | 4  | 5  | 6  | 7  | 8  | 9  | 10  | 11  | 12  | 13  | 14  | 15  | 16  | 17  | 18

1.008

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

4.003

6.939

9.0122

|  |  |  |  |  |  |  |  |  |  |

10.811

12.011

14.007

15.999

18.998

10.183

22.99

24.312

|  |  |  |  |  |  |  |  |  |  |

26.982

28.086

30.974

32.064

35.453

39.948

39.102

40.08

44.956

47.9

50.942

51.996

54.938

55.847

58.933

58.71

63.546

65.37

69.72

72.59

74.922

78.96

79.904

83.8

85.47

87.62

88.905

91.22

92.906

95.94

[97]

101.07

102.91

106.4

107.87

112.4

114.82

118.69

121.75

127.6

126.9

131.3

132.91

137.34

57*

138.91

178.49

180.95

183.85

186.2

190.2

192.2

195.09

196.97

200.59

204.37

207.19

208.98

210

210

222

215

226.03

89**

227.03

104

[261]

105

[262]

106

[266]

107

[264]

108

[265]

109

[268]

110

[271]

111

[272]

112

[277]

113

[284]

114

[289]

115

[288]

116

[292]

117

[293]

118

[294]

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
*Lanthanides  |

140.12

140.91

144.24

145

150.35

151.96

157.25

158.92

162.5

164.93

167.26

168.93

173.04

174.97

|  |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
**Actinides  |

232.04

231

238.03

237.05

239.05

241.06

244.06

249.08

252.08

252.08

100

257.1

101

258.1

102

259.1

103

262.11

|  |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

## References[edit]

1. ↑ http://education.jlab.org/itselemental/ele058.html
2. ↑ http://www.chemicool.com/elements/cerium.html
3. ↑ http://education.jlab.org/itselemental/ele058.html
4. ↑ http://www.chemicool.com/elements/cerium.html
5. ↑ http://education.jlab.org/itselemental/ele058.html