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Strontium
Strontium

Protactinium
Protactinium



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Strontium
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Protactinium

Strontium and Protactinium Periodic Table

Periodic Table

Symbol

Sr
Pa

Group Number

23
0 17
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Period Number

57
2 7
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Block

s block
f block

Element Family

Alkaline Earth
Actinide

CAS Number

74402467440133
7429905 54386242
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Space Group Name

Fm_ 3m
I4/mmm

Space Group Number

225.00139.00
11 276
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