Arsenic (As)vsSilicon (Si)
Arsenic (As) has a higher Atomic Mass (75 vs 28 u), while Arsenic (As) has a higher Density (6 vs 2 g/cm³), while Arsenic (As) has a higher Atomic Number (33 vs 14).
Atomic Properties
33
Atomic Number
14
75
Atomic Mass
28
4
Period
3
15
Group
14
Physical Properties
6
Density
2
N/A
Melting Point
1,687
N/A
Boiling Point
3,538
25
Molar Heat Capacity
20
Chemical Properties
2
Electronegativity
2
78
Electron Affinity
134
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).