Input interpretation
actinium | atomic diameter
Result
390 pm (picometers)
Periodic table location
Periodic table location
Atomic radii properties
atomic radius (empirical) | 195 pm covalent radius | 215 pm
Units
Unit conversions
0.39 nm (nanometers)
3.9×10^-10 meters
1.54×10^-8 inches
3.9 Å (ångströms)
Comparisons as diameter
≈ 0.4 × carbon nanotube diameter ( ≈ 1 nm )
≈ 1.1 × diameter of a carbon atom ( ≈ 340 pm )
≈ (0.00388 to 5.3) × diameter of a molecule ( 0.74 to 1000 Å )