Ruthenium (Ru)vsTantalum (Ta)
Ruthenium (Ru) has a higher Electron Affinity (101 vs 31 kJ/mol), while Tantalum (Ta) has a higher Atomic Mass (181 vs 101 u), while Tantalum (Ta) has a higher Atomic Number (73 vs 44).
Atomic Properties
44
Atomic Number
73
101
Atomic Mass
181
5
Period
6
8
Group
5
Physical Properties
12
Density
17
2,607
Melting Point
3,290
4,423
Boiling Point
5,731
24
Molar Heat Capacity
25
Chemical Properties
2
Electronegativity
2
101
Electron Affinity
31
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).