Americium (Am)vsPhosphorus (P)
Americium (Am) has a higher Atomic Mass (243 vs 31 u), while Phosphorus (P) has a higher Electron Affinity (72 vs 10 kJ/mol), while Americium (Am) has a higher Density (12 vs 2 g/cm³).
Atomic Properties
95
Atomic Number
15
243
Atomic Mass
31
7
Period
3
3
Group
15
Physical Properties
12
Density
2
1,449
Melting Point
N/A
2,880
Boiling Point
N/A
63
Molar Heat Capacity
24
Chemical Properties
1
Electronegativity
2
10
Electron Affinity
72
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).