Input interpretation
![plutonium americium | atomic mass](../image_source/fe3adcbd597bede9a0f7b399bdda5325.png)
plutonium americium | atomic mass
Results
![plutonium | 244 u (unified atomic mass units) americium | 243 u (unified atomic mass units) (atomic mass number given for longest-lived isotope)](../image_source/12ceb7699c2ad45b2b6692d1bbf27951.png)
plutonium | 244 u (unified atomic mass units) americium | 243 u (unified atomic mass units) (atomic mass number given for longest-lived isotope)
Relative values
![| visual | ratios | | comparisons americium | | 1 | 1 | 0.4% smaller plutonium | | 1 | 1 | 0.4% larger](../image_source/4025683f06585c504001025467b1b60c.png)
| visual | ratios | | comparisons americium | | 1 | 1 | 0.4% smaller plutonium | | 1 | 1 | 0.4% larger