Input interpretation
period 6 elements | atomic diameter
Summary
median | 350 pm highest | 520 pm (cesium) lowest | 240 pm (radon) distribution |
Units
Plot
Plot
Periodic table location
Periodic table location
Atomic radii properties
atomic radius (empirical) | median | 175 pm | highest | 260 pm (cesium) | lowest | 130 pm (osmium) | distribution | atomic radius (calculated) | median | 205 pm | highest | 298 pm (cesium) | lowest | 120 pm (radon) | distribution | covalent radius | median | 187 pm | highest | 244 pm (cesium) | lowest | 132 pm (mercury) | distribution | van der Waals radius | median | 175 pm | highest | 202 pm (lead) | lowest | 155 pm (mercury) | distribution |
Units
Distribution plots
(atomic diameter in picometers)
Atomic diameter rankings
1 | radon | 240 pm 2 | astatine | 254 pm 3 | osmium | 260 pm 4 | gold | 270 pm 5 | platinum | 270 pm 6 | iridium | 270 pm 7 | rhenium | 270 pm 8 | tungsten | 270 pm 9 | tantalum | 290 pm 10 | mercury | 300 pm ⋮ | | 23 | samarium | 370 pm 24 | promethium | 370 pm 25 | neodymium | 370 pm 26 | praseodymium | 370 pm 27 | cerium | 370 pm 28 | polonium | 380 pm 29 | thallium | 380 pm 30 | lanthanum | 390 pm 31 | barium | 430 pm 32 | cesium | 520 pm
Unit conversions for median atomic diameter 350 pm
0.35 nm (nanometers)
3.5×10^-10 meters
1.38×10^-8 inches
3.5 Å (ångströms)
Comparisons for median atomic diameter 350 pm
≈ 0.4 × carbon nanotube diameter ( ≈ 1 nm )
≈ diameter of a carbon atom ( ≈ 340 pm )
≈ (0.00349 to 4.7) × diameter of a molecule ( 0.74 to 1000 Å )