Input interpretation
group 13 elements | nuclear radius
Ranked values
| visual | ratios | | comparisons boron | | 0.7272 | 1 | 27.28% smaller aluminum | | 1 | 1.375 | 37.51% larger
Nuclear radius rankings
1 | boron | 2.052 fm 2 | aluminum | 2.822 fm (based on 2 values; 4 unavailable)
Unit conversions for median nuclear radius 2.437 fm
2.437×10^-15 meters
9.594×10^-14 inches
Comparisons for median nuclear radius 2.437 fm
≈ 0.86 × classical electron radius ( ≈ 2.8×10^-15 m )
≈ 2.9 × proton root-mean-square charge radius ( ≈ 8.4×10^-16 m )