Input interpretation
francium calcium | atomic mass
Results
francium | 223 u (unified atomic mass units) calcium | 40.078 u (unified atomic mass units)
francium | atomic mass | 223 u (unified atomic mass units) (atomic mass number given for longest-lived isotope)
Relative values
| visual | ratios | | comparisons calcium | | 0.18 | 1 | 82% smaller francium | | 1 | 5.56 | 456% larger