Column Descriptions Relative Isotopic Standard Isotope Atomic Mass Composition Atomic Weight Notes _________________________________________________________________________ 47 Ag 107 106.9050916(26) 0.51839(8) 107.8682(2) g 109 108.9047553(14) 0.48161(8) _________________________________________________________________________NIST | Physical Measurement Laboratory | Physical Reference Data | Atomic Weights and Isotopic Compositions Main Page