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Radium and Protactinium Periodic Table
f
Radium
Protactinium
Protactinium and Radium in Periodic Table
Summary
Periodic Table
Facts
Uses
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Chemical
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Properties
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Periodic Table
Symbol
Ra
Pa
Group Number
2
16
Not Available
Period Number
7
7
Block
s block
f block
Element Family
Alkaline Earth
Actinide
CAS Number
7440144
99+
7440133
99+
Space Group Name
Im_ 3m
I4/mmm
Space Group Number
229.00
1
139.00
8
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Radium vs Iridium
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Protactinium vs Cobalt
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Protactinium vs Chromium
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Protactinium vs Manganese
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