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Calcium (Ca)vsRadium (Ra)

Radium (Ra) has a higher Atomic Mass (226 vs 40 u), while Radium (Ra) has a higher Atomic Number (88 vs 20), while Radium (Ra) has a higher Electron Affinity (10 vs 2 kJ/mol).

Atomic Properties

20
Atomic Number
88
40
Atomic Mass
226
4
Period
7
2
Group
2

Physical Properties

2
Density
6
1,115
Melting Point
1,233
1,757
Boiling Point
2,010
26
Molar Heat Capacity
N/A

Chemical Properties

1
Electronegativity
1
2
Electron Affinity
10

Similar Comparisons to Calcium (Ca) vs Radium (Ra)

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