Barium (Ba)vsSelenium (Se)
Selenium (Se) has a higher Electron Affinity (195 vs 14 kJ/mol), while Selenium (Se) has a higher Group (16 vs 2), while Selenium (Se) has a higher Electronegativity (3 vs 1 Pauling).
Atomic Properties
56
Atomic Number
34
137
Atomic Mass
79
6
Period
4
2
Group
16
Physical Properties
4
Density
5
1,000
Melting Point
494
2,118
Boiling Point
958
28
Molar Heat Capacity
25
Chemical Properties
1
Electronegativity
3
14
Electron Affinity
195
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).