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Promethium
Promethium

Erbium
Erbium



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Promethium
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Erbium

Promethium and Erbium Periodic Table

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1 Periodic Table
1.1 Symbol
Pm
Er
1.2 Group Number
NANA
Gadolinium In Periodic Table
0 17
1.9 Period Number
66
Lithium In Periodic Table
2 7
1.10 Block
f block
f block
1.11 Element Family
Lanthanide
Lanthanide
1.12 CAS Number
74401227440520
Aluminium In Periodic Table
7429905 54386242
1.3 Space Group Name
Not Available
P63/mmc
1.4 Space Group Number
NA194.00
Plutonium In Periodic Table
11 229