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Thallium
Thallium

Thulium
Thulium



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Thallium and Thulium Periodic Table

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Periodic Table

Symbol

Tl
Tm

Group Number

133
0 17
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Period Number

66
2 7
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Block

p block
f block

Element Family

Post-​Transition
Lanthanide

CAS Number

74402807440304
7429905 54386242
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Space Group Name

P63/mmc
P63/mmc

Space Group Number

194.00194.00
11 276
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