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Niobium
Niobium

Technetium
Technetium



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Niobium
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Niobium and Technetium Periodic Table

Periodic Table

Symbol

Nb
Tc

Group Number

57
0 17
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Period Number

55
2 7
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Block

d block
d block

Element Family

Transition Metal
Transition Metal

CAS Number

74400317440268
7429905 54386242
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Space Group Name

Im_ 3m
P63/mmc

Space Group Number

229.00194.00
11 276
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