Californium (Cf)vsRadium (Ra)
Radium (Ra) has a higher Electron Affinity (10 vs -97 kJ/mol), while Californium (Cf) has a higher Density (15 vs 6 g/cm³), while Californium (Cf) has a higher Group (3 vs 2).
Atomic Properties
98
Atomic Number
88
251
Atomic Mass
226
7
Period
7
3
Group
2
Physical Properties
15
Density
6
1,173
Melting Point
1,233
1,743
Boiling Point
2,010
N/A
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
1
-97
Electron Affinity
10
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).