Input interpretation
group 2 elements | covalent radius
Summary
median | 186 pm highest | 221 pm (radium) lowest | 96 pm (beryllium) distribution |
Units
Ranked values
| | visual | ratios | 6 | beryllium | | 0.43 | 1 5 | magnesium | | 0.64 | 1.5 4 | calcium | | 0.8 | 1.8 3 | strontium | | 0.88 | 2 2 | barium | | 0.97 | 2.2 1 | radium | | 1 | 2.3
Plot
Plot
Periodic table location
Periodic table location
Atomic radii properties
atomic radius (empirical) | median | 190 pm | highest | 215 pm (barium and radium) | lowest | 105 pm (beryllium) | distribution | atomic radius (calculated) | median | 194 pm | highest | 253 pm (barium) | lowest | 112 pm (beryllium) | distribution | covalent radius | median | 186 pm | highest | 221 pm (radium) | lowest | 96 pm (beryllium) | distribution |
Units
Covalent radius rankings
1 | beryllium | 96 pm 2 | magnesium | 141 pm 3 | calcium | 176 pm 4 | strontium | 195 pm 5 | barium | 215 pm 6 | radium | 221 pm
Unit conversions for median covalent radius 186 pm
0.186 nm (nanometers)
1.86×10^-10 meters
7.3×10^-9 inches
1.86 Å (ångströms)
Comparisons for median covalent radius 186 pm
≈ 6 × atomic radius of helium (the smallest atom) ( ≈ 31 pm )
≈ 7.4 × atomic radius of hydrogen ( ≈ 25 pm )