Argon (Ar)vsArsenic (As)
Arsenic (As) has a higher Electron Affinity (78 vs -96 kJ/mol), while Arsenic (As) has a higher Density (6 vs 2 g/cm³), while Arsenic (As) has a higher Atomic Mass (75 vs 40 u).
Atomic Properties
18
Atomic Number
33
40
Atomic Mass
75
3
Period
4
18
Group
15
Physical Properties
2
Density
6
84
Melting Point
N/A
87
Boiling Point
N/A
N/A
Molar Heat Capacity
25
Chemical Properties
N/A
Electronegativity
2
-96
Electron Affinity
78
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).