Input interpretation
lanthanides | atomic radius
Summary
median | 180 pm highest | 195 pm (lanthanum) lowest | 175 pm (7 elements) distribution |
Units
Plot
Plot
Periodic table location
Periodic table location
Atomic radii properties
atomic radius (empirical) | median | 180 pm | highest | 195 pm (lanthanum) | lowest | 175 pm (7 elements) | distribution | atomic radius (calculated) | median | 226 pm | highest | 247 pm (praseodymium) | lowest | 205 pm (promethium) | distribution | covalent radius | median | 196 pm | highest | 207 pm (lanthanum) | lowest | 187 pm (ytterbium and lutetium) | distribution |
Units
Atomic radius rankings
1 | lutetium | 175 pm 2 | ytterbium | 175 pm 3 | thulium | 175 pm 4 | erbium | 175 pm 5 | holmium | 175 pm 6 | dysprosium | 175 pm 7 | terbium | 175 pm 8 | gadolinium | 180 pm 9 | europium | 185 pm 10 | samarium | 185 pm 11 | promethium | 185 pm 12 | neodymium | 185 pm 13 | praseodymium | 185 pm 14 | cerium | 185 pm 15 | lanthanum | 195 pm
Unit conversions for median atomic radius 180 pm
0.18 nm (nanometers)
1.8×10^-10 meters
7.09×10^-9 inches
1.8 Å (ångströms)
Comparisons for median atomic radius 180 pm
≈ 5.8 × atomic radius of helium (the smallest atom) ( ≈ 31 pm )
≈ 7.2 × atomic radius of hydrogen ( ≈ 25 pm )