Americium (Am)vsCalcium (Ca)
Americium (Am) has a higher Density (12 vs 2 g/cm³), while Americium (Am) has a higher Atomic Mass (243 vs 40 u), while Americium (Am) has a higher Atomic Number (95 vs 20).
Atomic Properties
95
Atomic Number
20
243
Atomic Mass
40
7
Period
4
3
Group
2
Physical Properties
12
Density
2
1,449
Melting Point
1,115
2,880
Boiling Point
1,757
63
Molar Heat Capacity
26
Chemical Properties
1
Electronegativity
1
10
Electron Affinity
2
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).