Hydrogen (H)vsLawrencium (Lr)
Hydrogen (H) has a higher Electron Affinity (73 vs -30 kJ/mol), while Lawrencium (Lr) has a higher Atomic Mass (266 vs 1 u), while Lawrencium (Lr) has a higher Melting Point (1,900 vs 14 K).
Atomic Properties
1
Atomic Number
103
1
Atomic Mass
266
1
Period
7
1
Group
3
Physical Properties
0
Density
N/A
14
Melting Point
1,900
20
Boiling Point
N/A
29
Molar Heat Capacity
N/A
Chemical Properties
2
Electronegativity
1
73
Electron Affinity
-30
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).