Input interpretation
iodine astatine | atomic diameter
Results
iodine | 280 pm (picometers) astatine | 254 pm (picometers)
Relative values
| visual | ratios | | comparisons astatine | | 0.91 | 1 | 9% smaller iodine | | 1 | 1.1 | 10% larger
Plot
Plot
Periodic table location
Periodic table location
Atomic radii properties
| iodine | astatine atomic radius (empirical) | 140 pm | atomic radius (calculated) | 115 pm | 127 pm covalent radius | 139 pm | 150 pm van der Waals radius | 198 pm |
Units
