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Technetium
Technetium

Niobium
Niobium



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Technetium
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Technetium and Niobium Periodic Table

Periodic Table

Symbol

Tc
Nb

Group Number

75
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

74402687440031
7429905 54386242
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Space Group Name

P63/mmc
Im_ 3m

Space Group Number

194.00229.00
11 276
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