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Radium
Radium

Roentgenium
Roentgenium



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Roentgenium

Radium and Roentgenium Periodic Table

Periodic Table

Symbol

Ra
Rg

Group Number

211
0 17
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Period Number

77
2 7
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Block

s block
d block

Element Family

Alkaline Earth
-

CAS Number

744014454386242
7429905 54386242
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Space Group Name

Im_ 3m
-

Space Group Number

229.00194.00
11 276
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