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Hafnium and Protactinium Periodic Table
Hafnium
Protactinium
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Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
Properties
All
1 Periodic Table
1.1 Symbol
Hf
Pa
1.2 Group Number
4
NA
0
17
1.3 Period Number
6
7
2
7
1.4 Block
d block
f block
1.5 Element Family
Transition Metal
Actinide
1.6 CAS Number
7440586
7440133
7429905
54386242
1.7 Space Group Name
P63/mmc
I4/mmm
1.8 Space Group Number
194.00
139.00
11
229
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