Input interpretation
actinides | atomic radius
Summary
median | 175 pm highest | 195 pm (actinium) lowest | 175 pm (4 elements) distribution | | (based on 7 values; 8 unavailable)
Entities with missing values
curium | berkelium | californium | einsteinium | fermium | mendelevium | nobelium | lawrencium (total: 8)
Plot
Plot
Periodic table location
Periodic table location
Atomic radii properties
atomic radius (empirical) | median | 175 pm | highest | 195 pm (actinium) | lowest | 175 pm (4 elements) | distribution | covalent radius | median | 193 pm | highest | 215 pm (actinium) | lowest | 169 pm (curium) | distribution |
Units
Atomic radius rankings
1 | americium | 175 pm 2 | plutonium | 175 pm 3 | neptunium | 175 pm 4 | uranium | 175 pm 5 | protactinium | 180 pm 6 | thorium | 180 pm 7 | actinium | 195 pm (based on 7 values; 8 unavailable)
Unit conversions for median atomic radius 175 pm
0.175 nm (nanometers)
1.75×10^-10 meters
6.89×10^-9 inches
1.75 Å (ångströms)
Comparisons for median atomic radius 175 pm
≈ 5.6 × atomic radius of helium (the smallest atom) ( ≈ 31 pm )
≈ 7 × atomic radius of hydrogen ( ≈ 25 pm )