Manganese (Mn)vsRadium (Ra)
Radium (Ra) has a higher Electron Affinity (10 vs -50 kJ/mol), while Radium (Ra) has a higher Atomic Mass (226 vs 55 u), while Radium (Ra) has a higher Atomic Number (88 vs 25).
Atomic Properties
25
Atomic Number
88
55
Atomic Mass
226
4
Period
7
7
Group
2
Physical Properties
7
Density
6
1,519
Melting Point
1,233
2,334
Boiling Point
2,010
26
Molar Heat Capacity
N/A
Chemical Properties
2
Electronegativity
1
-50
Electron Affinity
10
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).