Input interpretation
group 18 elements | atomic radius
Summary
median | 80 pm highest | 120 pm (radon) lowest | 31 pm (helium) distribution | | (based on 6 values; 1 unavailable)
Entity with missing value
oganesson
Ranked values
| | visual | ratios | 6 | helium | | 0.26 | 1 5 | neon | | 0.32 | 1.2 4 | argon | | 0.59 | 2.3 3 | krypton | | 0.73 | 2.8 2 | xenon | | 0.9 | 3.5 1 | radon | | 1 | 3.9
Plot
Plot
Periodic table location
Periodic table location
Atomic radii properties
atomic radius (calculated) | median | 80 pm | highest | 120 pm (radon) | lowest | 31 pm (helium) | distribution | covalent radius | median | 111 pm | highest | 150 pm (radon) | lowest | 28 pm (helium) | distribution | van der Waals radius | median | 188 pm | highest | 216 pm (xenon) | lowest | 140 pm (helium) | distribution |
Units
Atomic radius rankings
1 | helium | 31 pm 2 | neon | 38 pm 3 | argon | 71 pm 4 | krypton | 88 pm 5 | xenon | 108 pm 6 | radon | 120 pm (based on 6 values; 1 unavailable)
Unit conversions for median atomic radius 80 pm
0.079 nm (nanometers)
8×10^-11 meters
3.1×10^-9 inches
0.8 Å (ångströms)
Comparisons for median atomic radius 80 pm
≈ 2.6 × atomic radius of helium (the smallest atom) ( ≈ 31 pm )
≈ 3.2 × atomic radius of hydrogen ( ≈ 25 pm )