Input interpretation
promethium neodymium | atomic mass
Results
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