Input interpretation
![promethium neodymium | atomic mass](../image_source/57ba7938ffe3dabd6413e2d8864528a2.png)
promethium neodymium | atomic mass
Results
![promethium | 145 u (unified atomic mass units) neodymium | 144.242 u (unified atomic mass units)](../image_source/61ec821c0b16432ffe420ffcef6930ee.png)
promethium | 145 u (unified atomic mass units) neodymium | 144.242 u (unified atomic mass units)
Relative values
![| visual | ratios | | comparisons neodymium | | 0.995 | 1 | 0.5% smaller promethium | | 1 | 1.01 | 0.5% larger](../image_source/b87117e64a0cd5be7efd8771c57216a8.png)
| visual | ratios | | comparisons neodymium | | 0.995 | 1 | 0.5% smaller promethium | | 1 | 1.01 | 0.5% larger