Arsenic (As)vsErbium (Er)
Arsenic (As) has a higher Group (15 vs 3), while Arsenic (As) has a higher Electron Affinity (78 vs 30 kJ/mol), while Erbium (Er) has a higher Atomic Mass (167 vs 75 u).
Atomic Properties
33
Atomic Number
68
75
Atomic Mass
167
4
Period
6
15
Group
3
Physical Properties
6
Density
9
N/A
Melting Point
1,802
N/A
Boiling Point
3,141
25
Molar Heat Capacity
28
Chemical Properties
2
Electronegativity
1
78
Electron Affinity
30
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).