Input interpretation
sodium potassium | atomic radius
Results
sodium | 180 pm (picometers) potassium | 220 pm (picometers)
Relative values
| visual | ratios | | comparisons sodium | | 0.82 | 1 | 18% smaller potassium | | 1 | 1.22 | 22% larger
Plot
Plot
Periodic table location
Periodic table location
Atomic radii properties
| sodium | potassium atomic radius (empirical) | 180 pm | 220 pm atomic radius (calculated) | 190 pm | 243 pm covalent radius | 166 pm | 203 pm van der Waals radius | 227 pm | 275 pm
Units