A robot spacecraft returned samples from the planetesimal $98765$ ALEKS, located in the outer Solar System. Mass$-$spectroscopic analysis produced the following data on the isotopes of ruthenium in these samples:

$\backslash$table$[[$isotope$,\backslash$table$[[$mass$],[($amu$)]],\backslash$table$[[$relative$],[$abundance$]]],{[}^{102}Ru,101\mathrm{.}9,96\mathrm{.}7$