Beryllium (Be)vsOsmium (Os)
Osmium (Os) has a higher Electron Affinity (104 vs -48 kJ/mol), while Osmium (Os) has a higher Atomic Mass (190 vs 9 u), while Osmium (Os) has a higher Atomic Number (76 vs 4).
Atomic Properties
4
Atomic Number
76
9
Atomic Mass
190
2
Period
6
2
Group
8
Physical Properties
2
Density
23
1,560
Melting Point
3,306
2,742
Boiling Point
5,285
16
Molar Heat Capacity
25
Chemical Properties
2
Electronegativity
2
-48
Electron Affinity
104
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).