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Erbium
Erbium

Actinium
Actinium



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Erbium
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Actinium

Erbium and Actinium Periodic Table

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1 Periodic Table
1.1 Symbol
Er
Ac
1.2 Group Number
NANA
Gadolinium In Periodic Table
0 17
2.5 Period Number
67
Lithium In Periodic Table
2 7
3.4 Block
f block
f block
3.5 Element Family
Lanthanide
Actinide
3.6 CAS Number
74405207440348
Aluminium In Periodic Table
7429905 54386242
3.12 Space Group Name
P63/mmc
Fm_ 3m
3.13 Space Group Number
194.00225.00
Plutonium In Periodic Table
11 229