Input interpretation
protactinium actinium | atomic diameter
Results
protactinium | 360 pm (picometers) actinium | 390 pm (picometers)
Relative values
| visual | ratios | | comparisons protactinium | | 0.92 | 1 | 8% smaller actinium | | 1 | 1.08 | 8% larger
Plot
Plot
Periodic table location
Periodic table location
Atomic radii properties
| protactinium | actinium atomic radius (empirical) | 180 pm | 195 pm covalent radius | 200 pm | 215 pm
Units
