Magnesium has three naturally occurring isotopes (Mg-24, Mg-25, and Mg-26). Masses and natural abundances for two isotopes are listed here. IsotopeMass (amu)Abundance (%)
Mg-2423.985079
Mg-2524.985810
Mg-26??

Find the natural abundance and atomic mass of Mg-26 .
Express your answer using two significant figures.
thank you!

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)