Input interpretation
group 13 elements | covalent radius
Summary
median | 122 pm highest | 145 pm (thallium) lowest | 84 pm (boron) distribution | | (based on 5 values; 1 unavailable)
Entity with missing value
nihonium
Ranked values
| | visual | ratios | 5 | boron | | 0.58 | 1 4 | aluminum | | 0.83 | 1.4 3 | gallium | | 0.84 | 1.5 2 | indium | | 0.98 | 1.7 1 | thallium | | 1 | 1.7
Plot
Plot
Periodic table location
Periodic table location
Atomic radii properties
atomic radius (empirical) | median | 130 pm | highest | 190 pm (thallium) | lowest | 85 pm (boron) | distribution | atomic radius (calculated) | median | 136 pm | highest | 156 pm (indium and thallium) | lowest | 87 pm (boron) | distribution | covalent radius | median | 122 pm | highest | 145 pm (thallium) | lowest | 84 pm (boron) | distribution | van der Waals radius | median | 193 pm | highest | 196 pm (thallium) | lowest | 187 pm (gallium) | distribution |
Units
Covalent radius rankings
1 | boron | 84 pm 2 | aluminum | 121 pm 3 | gallium | 122 pm 4 | indium | 142 pm 5 | thallium | 145 pm (based on 5 values; 1 unavailable)
Unit conversions for median covalent radius 122 pm
0.122 nm (nanometers)
1.22×10^-10 meters
4.8×10^-9 inches
1.22 Å (ångströms)
Comparisons for median covalent radius 122 pm
≈ 3.9 × atomic radius of helium (the smallest atom) ( ≈ 31 pm )
≈ 4.9 × atomic radius of hydrogen ( ≈ 25 pm )