Osmium (Os)vsRuthenium (Ru)
Osmium (Os) has a higher Atomic Mass (190 vs 101 u), while Osmium (Os) has a higher Density (23 vs 12 g/cm³), while Osmium (Os) has a higher Atomic Number (76 vs 44).
Atomic Properties
76
Atomic Number
44
190
Atomic Mass
101
6
Period
5
8
Group
8
Physical Properties
23
Density
12
3,306
Melting Point
2,607
5,285
Boiling Point
4,423
25
Molar Heat Capacity
24
Chemical Properties
2
Electronegativity
2
104
Electron Affinity
101
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).