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Protactinium and Actinium Periodic Table
f
Protactinium
Actinium
Actinium and Protactinium in Periodic Table
Summary
Periodic Table
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Periodic Table
Symbol
Pa
Ac
Group Number
Not Available
Not Available
Period Number
7
7
Block
f block
f block
Element Family
Actinide
Actinide
CAS Number
7440133
99+
7440348
99+
Space Group Name
I4/mmm
Fm_ 3m
Space Group Number
139.00
8
225.00
2
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Compare Actinide Series
Protactinium vs Californium
Protactinium vs Thorium
Protactinium vs Plutonium
Actinide Metals
Berkelium
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Actinium vs Mendelevium
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Actinium vs Fermium
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» More Compare Actinide Series