Input interpretation
period 2 elements | covalent radius
Summary
median | 74 pm highest | 128 pm (lithium) lowest | 57 pm (fluorine and neon) distribution |
Units
Ranked values
| | visual | ratios | 8 | fluorine | | 0.45 | 1 7 | neon | | 0.45 | 1 6 | oxygen | | 0.52 | 1.2 5 | nitrogen | | 0.55 | 1.2 4 | carbon | | 0.59 | 1.3 3 | boron | | 0.66 | 1.5 2 | beryllium | | 0.75 | 1.7 1 | lithium | | 1 | 2.2
Plot
Plot
Periodic table location
Periodic table location
Atomic radii properties
atomic radius (empirical) | median | 70 pm | highest | 145 pm (lithium) | lowest | 50 pm (fluorine) | distribution | atomic radius (calculated) | median | 62 pm | highest | 167 pm (lithium) | lowest | 38 pm (neon) | distribution | covalent radius | median | 74 pm | highest | 128 pm (lithium) | lowest | 57 pm (fluorine and neon) | distribution | van der Waals radius | median | 155 pm | highest | 182 pm (lithium) | lowest | 147 pm (fluorine) | distribution |
Units
Covalent radius rankings
1 | neon | 58 pm 2 | fluorine | 57 pm 3 | oxygen | 66 pm 4 | nitrogen | 71 pm 5 | carbon | 76 pm 6 | boron | 84 pm 7 | beryllium | 96 pm 8 | lithium | 128 pm
Unit conversions for median covalent radius 74 pm
0.074 nm (nanometers)
7.4×10^-11 meters
2.9×10^-9 inches
0.74 Å (ångströms)
Comparisons for median covalent radius 74 pm
≈ 2.4 × atomic radius of helium (the smallest atom) ( ≈ 31 pm )
≈ 2.9 × atomic radius of hydrogen ( ≈ 25 pm )