Rubidium (Rb)vsThallium (Tl)
Thallium (Tl) has a higher Group (13 vs 1), while Thallium (Tl) has a higher Density (12 vs 2 g/cm³), while Thallium (Tl) has a higher Atomic Mass (204 vs 85 u).
Atomic Properties
37
Atomic Number
81
85
Atomic Mass
204
5
Period
6
1
Group
13
Physical Properties
2
Density
12
312
Melting Point
577
961
Boiling Point
1,746
31
Molar Heat Capacity
26
Chemical Properties
1
Electronegativity
2
47
Electron Affinity
36
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).