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Beryllium (Be)vsProtactinium (Pa)

Protactinium (Pa) has a higher Electron Affinity (53 vs -48 kJ/mol), while Protactinium (Pa) has a higher Atomic Mass (231 vs 9 u), while Protactinium (Pa) has a higher Atomic Number (91 vs 4).

Atomic Properties

4
Atomic Number
91
9
Atomic Mass
231
2
Period
7
2
Group
3

Physical Properties

2
Density
15
1,560
Melting Point
1,841
2,742
Boiling Point
4,300
16
Molar Heat Capacity
N/A

Chemical Properties

2
Electronegativity
2
-48
Electron Affinity
53

Similar Comparisons to Beryllium (Be) vs Protactinium (Pa)

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