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Arsenic (As)vsOganesson (Og)

Arsenic (As) has a higher Electron Affinity (78 vs 5 kJ/mol), while Oganesson (Og) has a higher Atomic Mass (294 vs 75 u), while Oganesson (Og) has a higher Atomic Number (118 vs 33).

Atomic Properties

33
Atomic Number
118
75
Atomic Mass
294
4
Period
7
15
Group
18

Physical Properties

6
Density
5
N/A
Melting Point
N/A
N/A
Boiling Point
350
25
Molar Heat Capacity
N/A

Chemical Properties

2
Electronegativity
N/A
78
Electron Affinity
5

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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).