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Lead
Lead

Thallium
Thallium



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Lead and Thallium Periodic Table

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1 Periodic Table
1.1 Symbol
Pb
Tl
1.2 Group Number
1413
0 17
1.3 Period Number
66
2 7
1.4 Block
p block
p block
1.5 Element Family
Post-​Transition
Post-​Transition
1.6 CAS Number
74399217440280
7429905 54386242
1.7 Space Group Name
Fm_ 3m
P63/mmc
1.8 Space Group Number
225.00194.00
11 229