Question

answer this question please for chemistry Element Y average atomic mass is 26.07 u. It has 3 known isotopes, the most abundant is found with an abundance of 71% and a mass of 26.21 u. The least observed isotope is seen 13% of the time with a mass of 27.45 u. What is the mass of the third isotope? Round your answer to two decimal places.

Answer 1

26,07=0,71*26,21+0,13*27,45+0,16*x

x=24,33