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Protactinium
Protactinium

Fermium
Fermium



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Protactinium
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Fermium

Protactinium and Fermium Periodic Table

Periodic Table

Symbol

Pa
Fm

Group Number

33
0 17
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Period Number

77
2 7
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Block

f block
f block

Element Family

Actinide
Actinide

CAS Number

74401337440724
7429905 54386242
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Space Group Name

I4/mmm
-

Space Group Number

139.00194.00
11 276
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