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Promethium
Promethium

Osmium
Osmium



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Promethium and Osmium Periodic Table

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Periodic Table

Symbol

Pm
Os

Group Number

38
0 17
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Period Number

66
2 7
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Block

f block
d block

Element Family

Lanthanide
Transition Metal

CAS Number

74401227440042
7429905 54386242
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Space Group Name

-
P63/mmc

Space Group Number

194.00194.00
11 276
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