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Actinium
Actinium

Cesium
Cesium



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Actinium and Cesium Periodic Table

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Periodic Table

Symbol

Ac
Cs

Group Number

31
0 17
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Period Number

76
2 7
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Block

f block
s block

Element Family

Actinide
Alkali

CAS Number

74403487440462
7429905 54386242
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Space Group Name

Fm_ 3m
Im_ 3m

Space Group Number

225.00229.00
11 276
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