Input interpretation
actinium berkelium | atomic mass
Results
actinium | 227 u (unified atomic mass units) berkelium | 247 u (unified atomic mass units) (atomic mass number given for longest-lived isotope)
Relative values
| visual | ratios | | comparisons actinium | | 0.92 | 1 | 8% smaller berkelium | | 1 | 1.09 | 9% larger