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Beryllium
Beryllium

Actinium
Actinium



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Actinium

Beryllium and Actinium Periodic Table

Periodic Table

Symbol

Be
Ac

Group Number

23
0 17
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Period Number

27
2 7
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Block

s block
f block

Element Family

Alkaline Earth
Actinide

CAS Number

74404177440348
7429905 54386242
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Space Group Name

P63/mmc
Fm_ 3m

Space Group Number

194.00225.00
11 276
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