Column Descriptions Relative Isotopic Standard Isotope Atomic Mass Composition Atomic Weight Notes _________________________________________________________________________ 42 Mo 92 91.90680796(84) 0.1453(30) 95.95(1) g 94 93.90508490(48) 0.0915(9) 95 94.90583877(47) 0.1584(11) 96 95.90467612(47) 0.1667(15) 97 96.90601812(49) 0.0960(14) 98 97.90540482(49) 0.2439(37) 100 99.9074718(11) 0.0982(31) _________________________________________________________________________NIST | Physical Measurement Laboratory | Physical Reference Data | Atomic Weights and Isotopic Compositions Main Page