Barium (Ba)vsPotassium (K)
Barium (Ba) has a higher Density (4 vs 1 g/cm³), while Barium (Ba) has a higher Atomic Mass (137 vs 39 u), while Potassium (K) has a higher Electron Affinity (48 vs 14 kJ/mol).
Atomic Properties
56
Atomic Number
19
137
Atomic Mass
39
6
Period
4
2
Group
1
Physical Properties
4
Density
1
1,000
Melting Point
337
2,118
Boiling Point
1,032
28
Molar Heat Capacity
30
Chemical Properties
1
Electronegativity
1
14
Electron Affinity
48
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).