Notably, silver is the only element with all stable istopes having nuclear spins of 1/2.
Thus both 107Ag and 109Ag nuclei produce narrow lines in nuclear magnetic resonance spectra.
The palladium isotope 107Pd decays by beta emission to 107Ag with a half-life of 6.5 million years.
Iron meteorites are the only objects with a high enough palladium/silver ratio to yield measurable variations in 107Ag abundance.
The discoverers suggest that the coalescence and differentiation of iron-cored small planets may have occurred 10 million years after a nucleosynthetic event.